TTCalc is a mathematical calculator that features a well structured graphical interface and is very easy to use.TTCal is composed of a standard scientific calculator and variable, functions, precision and display configuration tabs.TTCalc has a nice user interface, formulas for calculating can be inserted by using a keyboard or a mouse, the result is automatically shown in a second window without using any additional keys such as \'equal\'. TTCalc possess trigonometric functions, inverse trigonometric functions, hyperbolic functions, logical operators, logarithms, functions for converting between degrees and radians and so on. Additionally, TTCalc allows the user to define his own variables and functions. Calculations are performed by using floating point numbers with three kind of precision, the biggest has 288 bits for its mantissa and 96 bits for its exponent that is about 2.551...e+11925026709067095507636213441 with 85 valid decimal digits. TTCalc independently allows to insert and display values with the base (radix) from two to sixteen.What\'s New in This Release: [ read full changelog ]· fixed: calculating the size of the main window now it looks good on MS Vista and when a user changes size of some widgets such as a border, font size, etc.· changed: variables and functions are case-sensitive now, e.g. \'x\' is not the same as \'X\'changed: precision:· small - the same as previous· medium - 288 bits for the mantissa, 64 bits for the exponent· big - 864 bits for the mantissa, 128 bits for the exponent previous were: medium - 192 bits for the mantissa, 64 bits for the exponent big - 288 bits for the mantissa, 96 bits for the exponent· changed: new version of TTMath bignum library: 0.8.3· added: when a user presses CTRL+C then the result will be copied into the clipboard (if the current control which has a focus is not an edit control, or if it is an edit but has no selection)· added: when a user presses CTRL+V then the text from the clipboard will be copied into the edit control (the focus can be anywhere but it cannot be on another edit control)· added: \'decimal ...