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SigmaCalculator
Logimath
SigmaCalculator
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Free
Grades: 9 to 12
Downloads: 10,000-50,000
Num. Ratings: 33

Description

SigmaCalculator is an advanced scientific and expression calculator for Android.

Features:
Standard functions (exp, log, ln, sin, cos, tan, factorial, random, ...), Built-in constants, Integrated keypad (Numeric and Alphabetic), Angle unit in radian or degree, Calculation history, User-defined variables, Function graphing, Equation solving, etc.
SigmaCalculator is available in english and french, depending on your device settings.

SigmaCalculator supports the most common and useful mathematical functions. ItTMs easy to use: to evaluate a mathematical expression, simply type it in the input box, using operators (+ - * / ^), parenthesis and mathematical functions and press Calculate or the EXE button.
You can use SigmaCalculator keypad to enter numbers, operators, functions and define variables. You can set variables (with any non-reserved name); use fundamental constants; solve equations; plot functions; etc.

Recent changes:
The program parameters (variables list, expression history, angle unit, plot settings, etc.) are permanently saved.
The device screen is kept on during the SigmaCalculator session.
Help: updated.

Content rating: Everyone
Screenshots
Comments
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by Adam
- 08/28/2011
ApprovedReally good features for plotting and statistics, given that it's free. Could use more functions, though, like calculus, complex numbers, bit operatio

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by Miguel
- 06/19/2011
Cannot solve expressions when a constant multiplies a variable, like 8-2x=0 (it will solve 4-x=0 though). Will change my rating if this is fixed.

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by Raptor007
- 06/01/2011
Processes formulas and let's me type from the physical keyboard. Awesome!

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by janger
- 04/25/2011
Now the variables are saved permanently I'm giving this 5 stars. Great app. Thanks.

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by Eric
- 03/31/2011
Great app. Should include complex numbers to make complete.

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by estefania
- 03/18/2011
Very good...helped me alot on my homework

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by James
- 03/08/2011
Doesn't remember degree/Radian choice when restarting phone. Animation when answer appears is annoying - would be better to have a two line display.

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by Ace
- 02/19/2011
Can a formula be entered with various unknowns and then solve for the unkown? Will the solver rearrange the equation automatically?

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by triguy616
- 02/17/2011
This is a great free app! Has all the functions I was looking for, plus you can type the whole expression before calculating.