Java Scientific Calculator is a Home & Education software developed by Dr John D Lamb. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Java Scientific Calculator:

MarydownEditor: Java Scientific Calculator is a general-purpose Calculator that 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.

It 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. At the time I could find no other suitable calculator and I know of no other calculator that implements statistical functions.