**Name:**LeoCalculator**Screenshot:**

**Operation system:**MS Windows.

**Type:**Commercial.

**Installation:**installation link.

**Features:**

LeoCalculator performs calculation of mathematical expressions that could include not only basic operations but also elementary and basic statistics functions and brackets. Flexible user interface permits typing expressions at keyboard as well usage only mouse intact with virtual keyboard at the application window.

Edit box at the left can contain parameters to use in mathematical expression.

The syntax of mathematical expression with working example is located at the page calculator.php.

Calculator.

Calculator of math expression.

Calculator of math expression.