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This graphics-intensive program is a valuable transmission-line calculator.

Formula calculator with fullscreen editor.

Cool Windows calculator with editable tape, excelent for everyday use

Mathmatix is an animated 2D and 3D expression graphing calculator.

A calculator that may be used to perform addition, subtraction, multiplication

MYCalc2 is a powerfull RPN programmable scientific/Currency convertor calculator

A Simple MD5/SHA1 calculator in Ruby.

Flammable properties calculator for ATEX

KUA number calculator with info on KUA directions & 200 feng shui remedies.

Enter any two of torque, this little calculator will find the unknown quantity.