Function Calculator
This dialog can be used to compute a function with zero to three variables. With any program that uses the math coprocessor minor floating point rounding errors can occur, this dialog is no exception. For more information on rounding error see: Frequently Asked Questions. It can also give fractional results for some functions (Example "3/5"). For more information see: Mathematical Expression Rules.

Function Definition
Enter the function to be evaluated here. The function may contain the variable names listed below. For more information on functions and syntax see: Mathematical Expression Rules.

Variable Name - Enter a variable name to be used in evaluating the function here. Variables names can contain the letters "A" to "Z" and, can not equal a predefined function name like "Sin", "Cos" and "Sqrt".

Variable Value - Enter the value to be used in evaluating the function here. Must be a valid constant mathematical expression.

Result Format
This setting determines the numeric format used by the "Function Result" field.

Setting Example Output
Integer/Fraction 3 or 2/3
Fraction 7/1
Mixed Fraction 5 and 2/5
Decimal 7.5
Scientific 3.141592653E+0

Calculate Button - This button recalculates the "Function Result". Pressing the key while editing any of the dialogs fields will have the same result.

Function Result
Y=f(x,z)= This field displays the result of the function evaluation. This field is can not be edited.