delay calculator

PEMDAS is a Scientific calculator (was Formulas, was Equations).

Cocoa calculator program based on the calc library.

Ratiochinator is a calculator uses Chinese characters.

Financial markup calculator.

Wcalc is a very capable calculator.

PEMDAS Widget is a scientific calculator.

RPN calculator.

Totalus is a table type calculator for everyday life.

Powerful scientific and conversion calculator.

Comprehensive geometry calculator.