我需要编写一个程序来描述我在控制台中编写的功能 我的程序已经可以使用例如x ** 2或x + 2，但不适用于三角函数.我需要我的程序才能做到这两者

i need to make a program wich will describe function i write in console my program already works with for example x**2, or x+2, but it doesnt work with trigonometrical functions. I need my program to can do it both