text calculator

1. Usage:
1. The text calculator has the function of whether to save the calculation results when it is closed, and the decimal place selection function of the calculation results;
2. When the text calculator is opened, the last calculation result can be automatically loaded;
3. The formula calculation function is added to the formula button. Press Enter in the formula box to perform calculations where the formula is fixed but the numerical value changes;;
4. After entering the mathematical expression, press the Enter key to automatically calculate the result;
5. An expression must be entered entirely in one line;
6. Expressions can be addition +, subtraction -, multiplication *, division /, square ^, brackets (), and combinations of mathematical functions.
7. Double-click the input box to display the numeric keyboard, which is convenient for notebook users.
2. Supported mathematical functions:
1. More and more comprehensive than the previous version.
2. Example: 1+sin(30) (where 30 is radian) and after pressing the Enter key, it will display 1+sin(30)=0.012