History calculator -zen- is a revolutionary easy-to-use calculator.
■ You can see the formula.
You can see the expression you are editing. Calculate by pressing '='....展开
History calculator -zen- is a revolutionary easy-to-use calculator.
■ You can see the formula.
You can see the expression you are editing. Calculate by pressing '='.
■ Calculate according to operator priority.
Calculate first in parentheses. Multiplication / division is priority to addition / subt…收起
