A handy tool if you need to perform complex mathematical calculations Scientific Calculator Decimal is programmed in C#. All calculations are done in decimal data type. Each calculator has its own advantages. Data type double can operate numbers with large exponent and decimal data type has twice longer mantissa. That is double has about 14-15 digits and decimal has 28-30 digits. Scientific Calculator Decimal will enable you to perform multiple complex operations with ease! The version 1.0.0.1 released on June 30, 2008 has enabled E-button and improved algorithms of trigonometric functions. Now it is possible to calculate trigonometric functions with big arguments.