Free scientific calculator precision 72 software for windows

A general-purpose scientific calculator that you can use as a computer-desktop calculator Java Scientific Calculator is a small, simple and easy-to-use Java-based application that represents a general-purpose scientific calculator which you can use as a computer-desktop calculator or in a web application.
In addition to basic arithmetic functions it provides trigonometric functions, logarithms, powers and roots, complex numbers, binary, octal, decimal and hexadecimal calculations, logic, scientific notation, memory, statistical funcions (mean, and population and sample standard deviations), permutations and combinations.
Java Scientific Calculator also supports editing and replay of input and copying of output to the (system) clipboard. You can resize the application to one of three sizes and use the keyboard instead of the mouse for all keys.
Java Scientific Calculator was originally designed as part of a web application to show how you can use a calculator to calculate confidence intervals. This is why it has statistical functions and behaves in a similar way to pocket scientific calculators.
System requirements:
- Java 2 1.5

English version.
Solves math expressions like: Sin(Pi)-Root(-8;3)+3
Creates users functions (e.g. surfaces, volumes, and so on). Publishes in Internet. Receives from Internet.
Program shows position of bugs in math expression made by user. Descriptions of bugs help solve a problem.
Prompter shows functions, variables, constants. Simply press SPACE key.
Exchange rates table and currency converter are update from Internet by one click.
Units converter makes easier to convert various units.
14 categories of units: length, temperature, pressure and so on.
Creates users variables.
Numeral systems: binary, octal, decimal, hexadecimal.
Measures of angle: radian, degree, gradus.
5 sets of keyboards configured ba a user.
3 calculators - user can calculate three various math expressions.
Button Undo and Redo.
History of math expressions.
Comprehensive Help.

Precise Calculator knows all usual mathematical functions, statistical functions, prime numbers, PI, matrices, complex numbers.. You can adjust a precision of this calculator (for example: 1000 digits precision). It knows all usual mathematical functions, statistical functions, prime numbers, PI, matrices, complex numbers, integral and it is programmable (commands if, goto, print, return, ...).

Console Calculator quickly evaluates simple and advanced mathematical expressions Console Calculator quickly evaluates simple and advanced mathematical expressions, remembers recent entries, allows creation of user defined variables and custom functions.
Also includes base conversion between decimal, hexidecimal, and binary, unit conversion between SI and non-SI units. An especially handy tool for software developers or engineering.
Main features:
- 80-digits of decimal precision
- Advanced scientific calculator functions
- Simple and fast interface
- Define custom functions and variables
- Base conversion between decimal, hexidecimal, and binary.
- Unit conversion between all sorts of SI and non-SI units.

RJ Calculator is a scientific calculator with most basic functions like trigonometric functions, logarithms and base conversion. Also, statistic calculations like standard deviation and regression.
RJ Calculator makes it easy to recalculate or change the expression since you dont need to re-enter the whole thing. To edit the expression use the keys: [< Del] [Del >] [] or use the keyboard keys: delete, backspace or the arrow keys to move the caret.
You can program and store formulas like: S=bc -sin A/2 And there are a lot of variables to choose from if you like to add to the 50 already built in formulas available. You can also make a program using the built in program editor. RJ Calculators editor uses syntax highlighting to help you write the source code.