高级计算器 Speq Mathematics

小巧、独特而功能强大的计算器软件，带统计、函数、绘图等扩展功能。（多语言切换，可切换为中文版） SpeQ is a small, extensive mathematics program with a simple, intuitive interface. All calculations are entered in a sheet. In there you can freely add, edit and execute calculations. SpeQ supports all common functions, constants, and units. Furthermore, you can define custom variables and functions, and plot graphs of your functions. SpeQ is written to be an advanced but very easy to use math program. It is small and fast and runs on every Windows computer, also from an USB-key or floppy disk. SpeQ is useful for simple, brief calculations as well as working out sheets with extensive variable definitions, functions and complex calculations. SpeQ is usable for engineers, students and pupils or simply as replacement of the Windows Calculator. Screenshot of SpeQ Mathematics (Click to enlarge) SpeQ has the following features. * Expression calculations with arithmetic, conditional, logical and bitwise operators * Around 100 built-in mathematical, physical and conditional constants * Around 60 built-in functions for Analysis, Arithmetic, Complex numbers, Hyperbolic, Integers, Logical, Probability, Numeral systems, Statistics, Trigonometry * Define your own variables and functions for use in calculations * Plot fully adaptable graphs, trace the plotted functions, save your graphs * Extensive support for units * Decimal, binary, hexadecimal and octal numeral systems * Calculations with lists * Complex number calculations * Colored workarea * Save and load sheets * Orderly overview of all available functions and constants in the Functionstree * A list with all defined variables and functions in the Memorylist * Context-sensitive help and a detailed users guide