Developer's DescriptionBy xmart softDefine personal functions and solve mathematical expressions.Xmart Calculator SE is a smart, simple and multi-functional calculator based on text expression. Users can define personal functions and all calculations are step-by-step traceable. Xmart Converter inbuilt containing most common conversions for base, PC memory, speed, length, area, volume, weight and temperature. The Standard Edition can calculate expressions input by both keyboards and inbuilt buttons, record calculation history, multi-functional calculation, step by step traceability, and instance syntax checking.