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  • Casio Scientific Calculator fx 991ES PLUS
  • Casio Scientific Calculator fx 991ES PLUS
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Casio

Casio Scientific Calculator fx 991ES PLUS

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3.9
More than 5000
2 724 >
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Product Summary of Casio Scientific Calculator fx 991ES PLUS

  • Brand: Casio
  • Brand: Casio
  • 10+2 Digits Scientific Calculator
  • Two Way power
  • Natural Text Book Display
  • 417 functions
  • Dimensions: 11.1 x 80 x 162
  • Product code: Casiofx-991ESPLUS
  • SUPC: 1535033
:

Casio Scientific Calculator fx 991ES PLUS

Casio Computers is a multinational electronics manufacturing company headquartered in Japan. Its products include calculators, mobile phones, cameras, musical instruments and watches. The mission of Casio's product development is to create something where there was nothing before - what Casio calls going from "0" to "1." By creating totally original products, Casio adds fun and convenience to daily life and pioneers new cultural trends.

  • Similar Products
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Reviews & Ratings for Casio Scientific Calculator fx 991ES PLUS

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Reviews Snapshot

4.5 (based on 386 ratings)

REVIEW SNAPSHOT®

by PowerReviews
 
4.7

(based on 76 reviews)

Ratings Distribution

  • 5 Stars

     

    (54)

  • 4 Stars

     

    (20)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

Pros

  • Clear display (50)
  • Adequate capabilities (47)
  • Attractive (47)
  • Easy to use (42)
  • Well built / quality (42)

Cons

  • Difficult to use (6)
  • Flimsy construction (5)

Best Uses

  • Engineering (60)
  • Math classes (38)
  • Science classes (31)
  • Office work (11)
  • School (11)
    • Primary use:
    • Personal (69), Business (4)

Most Liked Positive Review

 

best calculator.. must have product

good one..

sleek and sturdy design considering the younger generation of students use. has plastic keys slide-on hard case scratch-proof displays. these features make it ideal for school and college...Read complete review

good one..

sleek and sturdy design considering the younger generation of students use. has plastic keys slide-on hard case scratch-proof displays. these features make it ideal for school and college students.

expression and signs, such as a mathematics natural display fraction and root can be displayed as a textbook.

the statistical data edit-function statistical data of a list base can be intelligibly inputted in the form of a table and it can use for statistic calculation.

by adoption of the full dot system display excellent in legible full dot display visibility, a fraction, logarithm and the expression and the sign of root can be displayed as a textbook.

by sliding the center cursor key parameter of easy operation up and down, four-directions movement in a formula can be performed easily.

moreover, the multi-Ripley function which calls and corrects the formula performed once and can be performed again is carried.

it is convenient for the repetitive calculation etc which replace a numerical value.

by a multi replay center cursor key, four-directions movement of a formula can be performed easily.

Main features

• Two way power
• 417 Functions
• Plastic Keys

• Integration / Differential
• Equation calculation
• Matrix calculations / Vector calculations
• Complex number calculation
• CALC function / SOLVE function
• Base-n calculation

• Fraction calculation
• Combination and Permutation
• Logarithm log
• List-based STAT data editor
• Standard deviation
• Paired-variable statistics regression analysis
• Logical operations
• Table function
• 40 scientific constants
• 40 metric conversions (20 conversion pairs)
• 9 variable memories

great product.. i recommend

VS

Most Liked Negative Review

 

pertty good

could have been of better quality for its price the keys shake in their cavity and the solar panel does the same

could have been of better quality for its price the keys shake in their cavity and the solar panel does the same

Reviewed by 76 customers

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Displaying reviews 1-20

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(12 of 14 customers found this review helpful)

 
5.0

Good Calculator for Engineers

By Suvajit

from Kolkata

Reviewer has purchased this product from Snapdeal.com
Shopping Mentor

Pros

  • Professional Quality

Cons

    Best Uses

      I think this is the best calculators for engineering students...

      • Primary use:
      • Personal

      Comment on this review(earn points)

      (4 of 5 customers found this review helpful)

       
      5.0

      best calculator

      By SHABEE SATSANGI

      from Udaipur

      Reviewer has purchased this product from Snapdeal.com
      Shopping Buddy

      Pros

      • Bright White
      • Durable Construction
      • Professional Quality

      Cons

        Best Uses

          product is quite good and give answers in two different formats i.g. 3/2 or 1.5. i like his part. you can view on you tube using related query. It has more functions approx 447.
          Note: be careful for exams because some papers allowed the FX100 calculators only. This is not a programmable.So, in my exams may be this is allowed. I am not sure yet.
          light weight and two way powered makes it easy to carry and use.
          large graphic screen is plus point. but you have to learn a lot to run this perfectly.

          • Primary use:
          • Personal

          Comment on this review(earn points)

          (3 of 6 customers found this review helpful)

           
          4.0

          GOOD STUFF

          By SHAN

          from Delhi

          Reviewer has purchased this product from Snapdeal.com
          Shopping Enthusiast

          Pros

          • Professional Quality

          Cons

          • Flimsy Construction

          Best Uses

            GOOD ONE

            • Primary use:
            • Personal

            Comment on this review(earn points)

            (2 of 2 customers found this review helpful)

             
            5.0

            best calculator.. must have product

            By Joby

            from Kerala

            Reviewer has purchased this product from Snapdeal.com
            Shopping Buddy

            Pros

            • Adequate Capabilities
            • Attractive Design
            • Clear Display
            • Compact Size
            • Easy To Use
            • Quality Construction

            Cons

              Best Uses

              • Engineering
              • Math Classes
              • Office Work
              • School

              good one..

              sleek and sturdy design considering the younger generation of students use. has plastic keys slide-on hard case scratch-proof displays. these features make it ideal for school and college students.

              expression and signs, such as a mathematics natural display fraction and root can be displayed as a textbook.

              the statistical data edit-function statistical data of a list base can be intelligibly inputted in the form of a table and it can use for statistic calculation.

              by adoption of the full dot system display excellent in legible full dot display visibility, a fraction, logarithm and the expression and the sign of root can be displayed as a textbook.

              by sliding the center cursor key parameter of easy operation up and down, four-directions movement in a formula can be performed easily.

              moreover, the multi-Ripley function which calls and corrects the formula performed once and can be performed again is carried.

              it is convenient for the repetitive calculation etc which replace a numerical value.

              by a multi replay center cursor key, four-directions movement of a formula can be performed easily.

              Main features

              • Two way power
              • 417 Functions
              • Plastic Keys

              • Integration / Differential
              • Equation calculation
              • Matrix calculations / Vector calculations
              • Complex number calculation
              • CALC function / SOLVE function
              • Base-n calculation

              • Fraction calculation
              • Combination and Permutation
              • Logarithm log
              • List-based STAT data editor
              • Standard deviation
              • Paired-variable statistics regression analysis
              • Logical operations
              • Table function
              • 40 scientific constants
              • 40 metric conversions (20 conversion pairs)
              • 9 variable memories

              great product.. i recommend

              • Primary use:
              • Personal

              Comment on this review(earn points)

              (1 of 1 customers found this review helpful)

               
              4.0

              Awesome calculator in its class!!!

              By Dj

              from pune

              Reviewer has purchased this product from Snapdeal.com
              Shopping Enthusiast

              Pros

              • Adequate Capabilities
              • Clear Display
              • Compact Size
              • Easy To Use
              • Long Battery Life
              • Quality Construction

              Cons

                Best Uses

                • Engineering
                • Science Classes

                great calc in its class. very user friendly.every engineer should have it

                • Primary use:
                • Personal

                Comment on this review(earn points)

                (1 of 2 customers found this review helpful)

                 
                5.0

                best product at economical level

                By mudassir

                from Aurangabad and Mumbai

                Reviewer has purchased this product from Snapdeal.com
                Shopping Enthusiast

                Pros

                • Adequate Capabilities
                • Attractive Design
                • Clear Display
                • Compact Size
                • Easy To Use
                • Long Battery Life
                • Quality Construction

                Cons

                • Difficult To Use

                Best Uses

                • Engineering

                thanks for giving this calculator at cheap price,please give me notice obout your product at my mobile number 9323449531

                • Primary use:
                • Personal

                Comment on this review(earn points)

                (1 of 1 customers found this review helpful)

                 
                4.0

                nice product n good quality

                By yathish

                from karnataka

                Reviewer has purchased this product from Snapdeal.com
                Shopping Enthusiast

                Pros

                • Clear Display
                • Easy To Use

                Cons

                  Best Uses

                  • Engineering

                  good one..

                  sleek and sturdy design considering the younger generation of students use. has plastic keys slide-on hard case scratch-proof displays. these features make it ideal for school and college students.

                  expression and signs, such as a mathematics natural display fraction and root can be displayed as a textbook.

                  the statistical data edit-function statistical data of a list base can be intelligibly inputted in the form of a table and it can use for statistic calculation.

                  by adoption of the full dot system display excellent in legible full dot display visibility, a fraction, logarithm and the expression and the sign of root can be displayed as a textbook.

                  by sliding the center cursor key parameter of easy operation up and down, four-directions movement in a formula can be performed easily.

                  moreover, the multi-Ripley function which calls and corrects the formula performed once and can be performed again is carried.

                  it is convenient for the repetitive calculation etc which replace a numerical value.

                  by a multi replay center cursor key, four-directions movement of a formula can be performed easily.

                  Main features

                  • Two way power
                  • 417 Functions
                  • Plastic Keys

                  • Integration / Differential
                  • Equation calculation
                  • Matrix calculations / Vector calculations
                  • Complex number calculation
                  • CALC function / SOLVE function
                  • Base-n calculation

                  • Fraction calculation
                  • Combination and Permutation
                  • Logarithm log
                  • List-based STAT data editor
                  • Standard deviation
                  • Paired-variable statistics regression analysis
                  • Logical operations
                  • Table function
                  • 40 scientific constants
                  • 40 metric conversions (20 conversion pairs)
                  • 9 variable memories

                  great product.. i recommend

                  • Primary use:
                  • Personal

                  Comment on this review(earn points)

                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  Beauty + Brain ♡♡

                  By shanu

                  from Lucknow

                  Reviewer has purchased this product from Snapdeal.com
                  Shopping Buddy

                  Pros

                  • Adequate Capabilities
                  • Attractive Design
                  • Clear Display
                  • Compact Size
                  • Easy To Use
                  • Long Battery Life
                  • Quality Construction

                  Cons

                    Best Uses

                    • Engineering
                    • Math Classes
                    • Science Classes

                    Awsome Scientific Calculator by Casio.best calculator for Engineer Students.It has all the functions needed.THE BEST OF THIS CALCULATOR IS ITS AMAZING DISPLAY.The display is so nice that we can see the result from all the angles where in 991MS and 82MS this function is not provided.This Calculator is also LIGHT inweight which is a PLUS point for this.VERY HAPPY by snapdeal.

                    • Primary use:
                    • Personal

                    Comment on this review(earn points)

                    (1 of 1 customers found this review helpful)

                     
                    4.0

                    Calculator for Engineering Students

                    By Babu

                    from Kharagpur

                    Reviewer has purchased this product from Snapdeal.com
                    Shopping Enthusiast

                    Pros

                    • Attractive Design
                    • Clear Display
                    • Easy To Use
                    • Long Battery Life

                    Cons

                      Best Uses

                      • Engineering
                      • Math Classes
                      • Science Classes

                      This calculator is good for engineering students. Most of the problems can be solved by this calculator. Its really a nice product. Design is also good.

                      • Primary use:
                      • Personal

                      Comment on this review(earn points)

                      (1 of 2 customers found this review helpful)

                       
                      4.0

                      Must Have Product

                      By Moinak94

                      from Chennai

                      Reviewer has purchased this product from Snapdeal.com
                      Shopping Enthusiast

                      Pros

                      • Professional Quality

                      Cons

                      • Flimsy Construction

                      Best Uses

                      • Taking Notes

                      Good One...!! This is a must have product...

                      • Primary use:
                      • Personal

                      Comment on this review(earn points)

                      (1 of 1 customers found this review helpful)

                       
                      5.0

                      i would say very good product

                      By smarty

                      from mumbai

                      Reviewer has purchased this product from Snapdeal.com
                      Shopping Buddy

                      Pros

                      • Durable Construction

                      Cons

                        Best Uses

                          good product

                          • Primary use:
                          • Personal

                          Comment on this review(earn points)

                           
                          5.0

                          good

                          By pp

                          from mandi

                          Reviewer has purchased this product from Snapdeal.com
                          Shopping Enthusiast

                          Pros

                          • Long Battery Life

                          Cons

                          • Difficult To Use

                          Best Uses

                          • Engineering

                          nice

                          • Primary use:
                          • Personal

                          Comment on this review(earn points)

                           
                          5.0

                          versatile & delicate

                          By Nelson

                          from Goa

                          Reviewer has purchased this product from Snapdeal.com
                          Shopping Mentor

                          Pros

                          • Adequate Capabilities
                          • Attractive Design
                          • Clear Display
                          • Compact Size
                          • Easy To Use
                          • Long Battery Life

                          Cons

                            Best Uses

                            • Engineering
                            • Math Classes
                            • Office Work
                            • School
                            • Science Classes

                            very versatile and beautiful calculator but keys are delicate like girl. Need to delicately press buttons to ensure long utility life. Lots of functions and easy menu.

                            • Primary use:
                            • Personal

                            Comment on this review(earn points)

                             
                            5.0

                            great

                            By rupam

                            from malda

                            Reviewer has purchased this product from Snapdeal.com
                            Shopping Buddy

                            Pros

                            • Attractive Design
                            • Clear Display
                            • Compact Size
                            • Long Battery Life
                            • Quality Construction

                            Cons

                              Best Uses

                              • Engineering
                              • Math Classes
                              • Science Classes

                              nice

                              • Primary use:
                              • Personal

                              Comment on this review(earn points)

                               
                              5.0

                              Best one for engineers

                              By Vallabh

                              from Hyderabad

                              Reviewer has purchased this product from Snapdeal.com
                              Shopping Enthusiast

                              Pros

                              • Adequate Capabilities
                              • Attractive Design
                              • Clear Display
                              • Compact Size
                              • Easy To Use
                              • Long Battery Life
                              • Quality Construction

                              Cons

                                Best Uses

                                • Engineering

                                Hey guys, this model fx 991es scientific calculator is more efficiency. And used most and mainly by engineering students. It is easy to use than other models....
                                This is the best one.....

                                • Primary use:
                                • Personal

                                Comment on this review(earn points)

                                 
                                5.0

                                one of the best product avilable

                                By JANAKI RAM

                                from VIJAYAWADA

                                Reviewer has purchased this product from Snapdeal.com
                                Shopping Enthusiast

                                Pros

                                • Clear Display
                                • Quality Construction

                                Cons

                                  Best Uses

                                  • Engineering
                                  • Math Classes

                                  GOOD PRODUCT

                                  • Primary use:
                                  • Personal

                                  Comment on this review(earn points)

                                   
                                  5.0

                                  best calculator

                                  By kishan

                                  from ankleshwar,gujarat

                                  Reviewer has purchased this product from Snapdeal.com
                                  Shopping Enthusiast

                                  Pros

                                  • Adequate Capabilities
                                  • Clear Display
                                  • Compact Size
                                  • Easy To Use
                                  • Long Battery Life
                                  • Quality Construction

                                  Cons

                                    Best Uses

                                    • Engineering

                                    casio scientific calculator 991ES plus is great calculator it has 416 different calculation mathod

                                    • Primary use:
                                    • Personal

                                    Comment on this review(earn points)

                                     
                                    5.0

                                    Great calculator

                                    By amat3rs

                                    from chennai

                                    Reviewer has purchased this product from Snapdeal.com
                                    Shopping Enthusiast

                                    Pros

                                    • Adequate Capabilities

                                    Cons

                                      Best Uses

                                      • Engineering
                                      • Math Classes
                                      • Science Classes

                                      Great Casio product, as usual!Especially useful for those who still do some maths while designing engineering products.

                                      • Primary use:
                                      • Personal

                                      Comment on this review(earn points)

                                       
                                      5.0

                                      guarantee to buy

                                      By devy

                                      from karnaraka

                                      Reviewer has purchased this product from Snapdeal.com
                                      Shopping Enthusiast

                                      Pros

                                      • Attractive Design
                                      • Compact Size
                                      • Easy To Use

                                      Cons

                                        Best Uses

                                        • Math Classes
                                        • Science Classes

                                        good product at low price

                                        • Primary use:
                                        • Personal

                                        Comment on this review(earn points)

                                         
                                        5.0

                                        Awesome Calculator..!!!!

                                        Pros

                                        • Adequate Capabilities
                                        • Attractive Design
                                        • Clear Display
                                        • Compact Size
                                        • Easy To Use
                                        • Long Battery Life
                                        • Quality Construction

                                        Cons

                                          Best Uses

                                          • Engineering

                                          You Dont buy it..you earn it...flawless calculator with all required functions,textbook like display,slim n steardy..trust me and go for it..you wont regret I assure..

                                          • Primary use:
                                          • Personal

                                          Comment on this review(earn points)

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