| Calculate.framework | |
|---|---|
| Private Framework | |
| Availabile | 2.0 – present |
The Calculate framework provides a single function, CalculatePerformExpression, whose only purpose is to evaluate a mathematical expression in a string. The usage as same as the Mac OS X counterpart, and is documented in [1].
Recognized expressions
- Binary operators:
- and, or, nor, xor, +, -, *, /, <<, >>
- Constants:
- pi
- Unary functions:
- sqrt, cbrt, exp, ln, log, sin, cos, tan, asin, acos, atan, sind, cosd, tand, asind, acosd, atand, sinh, cosh, tanh, asinh, acosh, atanh, ceil, floor, fabs, rint, lgamma, erf, erfc
- Binary functions:
- pow, fmod, hypot, rem
- Miscellaneous:
- x! (factorial), -x (unary minus)
Changing mode and precision in "runtime"
The evaluation mode can be changed in runtime with the integer, double and decimal keyword, e.g.
- integer 8/3 (returns 2)
The precision can be changed in runtime with precision=x, where 0 ≤ x ≤ 16.