Sometimes you need to do a serial calculations that only the numbers are changed, but you have to input the whole expression again and again.
You need a calc supporting variables which represent the numbers.
DaCalc is such a formula calculator.It supports composing a new formula, editing, imp/exp, etc.
1. add 0 as the default number in edit box. (hint)
2. reset editbox to 0 after = pressed.
1. Fixed the result error issue caused by putting '(' before '-'
2. Fixed the express color issue
UI improvement, includes:
1. Align the expression and the result.
2. Auto add "0." for ".".
3. Can disable the cursor in the input box.
4. Other improvements.