FXCalc is an accurate formula scientific calculator with a modern look.

It is built with AS3, Adobe AIR, Starling and Feathers UI.

FXCalc for Android is available for free on Google Play.

FXCalc for iOS and FXCalc for desktop are coming soon.

FXCalc for web online scientific calculator. License available on request.

FXCalc for web requires the Flash Player plug-in.

Enter a mathematical expression and use the equals button to evaluate it, carrying out calculations in sequence determined by common mathematics order of operations.

The expressions and their results are stored in the calculation history.

- To go back and forward in history, use the up and down arrow buttons.
- To start editing the displayed formula, use the left or right arrow button. When editing a formula, use these buttons or tap anywhere within the formula to move the caret.
- To clear the current formula, use the
`AC`

button. When viewing a formula, you can also just start entering a new expression without clearing the old one. - To switch between the insert and replace modes, use the
`INS`

toggle button.

The calculation results can be displayed in different formats.

- To display results in normal (fixed point) notation, use either
`Nor1`

,`Nor2`

, or`Fix`

buttons. - To display results in scientific (exponential) notation, use either
`Sci`

or`Eng`

buttons. - To adjust the number of digits to display, long-press the button (except
`Nor2`

) then use the slider.

The angles (e.g. for trigonometric functions) can be expressed in either Degrees, Radians or Grads. To cycle between angle units, use the `DRG`

button.

To access the hyperbolic and inverse trigonometric functions, use the `hyp`

and `inv`

toggle buttons.

Currently, two variables are available to use, additional variables will be added later.

The answer variable (`Ans`

) is a special variable that contains the result of the last successful calculation.

- To recall it's value, use the
`Ans`

button.

The memory variable (`M`

) is a general purpose variable with dedicated buttons.

- To set, recall and clear (set to zero) the memory variable, use the
`MS`

,`MR`

and`MC`

buttons. - To increase or decrease the value of the memory variable by the current value, use the
`M+`

and`M-`

buttons.

The display precision is limited to at most 12 decimal digits, the decimal exponent range is limited to [-99; 99].

Internally, the calculator uses IEEE 754 double precision floating point arithmetic, allowing representation of numbers with a decimal exponent range of [-308; 308] with 15–17 decimal digits precision.

More features are coming soon!

Bug reports, feature requests and other suggestions are welcome.