The program allows you to calculate the expression in the analytic form with the task of recording the values \u200b\u200bof the arguments. For example: sin (a + z) * c, a = 1, z = 0.57, c = 2. It supports a large number of operations and functions, such as trigonometric functions, exponentiation, logarithms, and rounding al. (About 30).
When programming, use only standard components Delphi (the default).