Where can I go online and use a scientific calculator for free?
eCalc is an easy to use scientific calculator that supports many advanced features including unit conversion, equation solving, and even complex-number math. eCalc is offered as both an online calculator and as a downloadable calculator. Input Mode (Algebraic vs. RPN) The online calculator operates in either algebraic input (default mode) or RPN input. The calculator mode is set by clicking on the “ALG/RPN” symbol in the status bar or by changing the mode inside the menu dialog box. Algebraic Mode Algebraic input mode is commonly referred to as “infix notation” and is widely used by most handheld calculators. Expressions entered in algebraic input mode are done in a manner that closely resembles the natural form of the expression and the order of the operations is determined by operator precedence and parenthesis. RPN Mode RPN, which stands for Reverse Polish notation, is a stack-based notation where operators are designed to follow their operands. For example, to evaluate the expressi
Over a million PC users and PDA owners have already downloaded our popular calculator software Calc98. The current version (5.3) is available for free download. It runs on Microsoft Windows95/98/ME, WindowsNT, Windows2000/XP/Vista and on PDA devices running WindowsCE (Pocket PC). You can view the product documentation online, or see Windows version screenshots or Pocket PC version screenshots. Calc98 is freeware. You may use the software for a trial period of 90 days. After that time we ask you to register the product, free of charge. A registration form is included with the download files. Alternatively, you can use our Online Registration Form. You can also order the latest version of Calc98 for Windows or Windows Mobile/Pocket PC for immediate download. We also have a CD available with the latest version supporting most Windows and Windows CE devices, along with other software and extras. For more information about Calc98, see our Frequently Asked Questions page. Sources:
