This is a very useful scientific calculator, with the basic operations like addition, subtraction, multiplication, division but also with some advanced functions as square root, logarithms to base 2, exponential, trigonometric operators and much more.
The only thing needed to use this calculator is to make your computer enabled to read javascript because that is the code at the base of the script.
Now some curiosities about calculators.
The first rudimentary calculators that are remembered are little bones, pebbles and counting boards, and of course the so-called Abacus, used by Egyptians around 2000 BC.
The abacus was a device made of wood, supporting wires on which were piled some balls.
Old mechanisms were replaced by the first mechanical calculators.
A mechanical calculator is a calculator that performs calculations based on mechanical devices. This type of calculator was not very successful and was soon replaced by electronic calculators.
For electronic calculator we mean a calculator that performs calculations using electronic devices.
The first models were entirely electronic and they were not so much popular. Then, the advent of transistors and integrated circuits changed everything, and microelectronic technology completely replaced the mechanical one.
Nowadays there are a vast number of types and models of calculators. Some pocket calculators can reach a very minimum size, others are so big and complicated that can integrate a printer.
The model to choose depends on what we want to do with it.
For simple calculations and fun we suggest a common normal and basic calculator, with one or two batteries as a power source, LCD or LED display, 8-12 digits.
The normal keypad includes in this case only the digits 0 through 9, a decimal point, the equal sign, addition, subtraction, multiplication and division, a button to clear any typing error, and other simple functions like square root or percentage.
Only thirty years ago they start to incorporate the common calculators in other devices, such as mobile phones and watches.
If we need a more intelligent and versatile calculator instead, we have to turn to scientific calculators.
In addition to the basic calculations you can perform more complicated calculations related to physics, engineering, finance, etc.
It's up to you. We recommend our online calculators for all your needs.

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