Previously, we shared Free Online Scientific Calculator from eCalc and now comes some very useful and easy to understand guide on Maths. These sheets are the best source to get knowledge on various topics of Math. You cab see the Math sheets below:

Algebra Help Math Sheet

Geometry Math Sheet

Trigonometry Definition Math Sheet

Trigonometry Laws and Identities Math Sheet

Calculus Derivatives and Limits Math Sheet

Calculus Integrals Math Sheet

These mathematical sheets can be read online or can be downloaded as PDF or a image file which you can print for reading offline later.

I found all the above Math sheets really handy and good to read. Do check them out!

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The best part is that it is available for Windows and can be used easily. You need to download the small file and extract it. Then run the file named Handwriting calculator and write your mathematical expression using mouse. You will see the output in real time.

Compatibility and system requirements:

• The S60 version is tested on Nokia 5800 XpressMusic and should work on all Nokia touch devices based on S60 5th Edition.
• The Maemo version is tested on Nokia N800 and N810, and should work on all Nokia internet tablet devices with OS2008 software.
• The PC version is tested on Windows XP SP2 and Vista.

Download Handwriting Calculator

Installer for S60 (e.g. Nokia 5800 XpressMusic)
Download (SIS, 181 kB)
Installer for Maemo (e.g. Nokia N800, N810)
Download (DEB, 175 kB)
Installer for Windows PC
Download (ZIP 175 kB)

It is a very useful tool because it lets you calculate the typical mathematical expressions easily without the need to type anything.

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Input Mode (Algebraic vs. RPN)

The online calculator operates in either algebraic input (default mode) or RPN input.  The calculator mode is set by clicking on the "ALG/RPN" symbol in the status bar or by changing the mode inside the menu dialog box.

There is a Windows desktop version of basic calculator. It’s completely free and it runs on your computer without requiring an internet connection. It has support for 6 languages.

Download Free Calculator (Windows Installer)

A Portable version of eCalc basic calculator is also there which allows you to run the calculator from a flash thumb drive, or right from your desktop without requiring any installation.

Download Portable Calculator (Standalone exe version)

Other Alternative – http://web2.0calc.com/

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Windows 7 Calculator has added new mode of calculation, i.e. Programmer and Statistics, and beyond that, more importantly, improves on the user interface of the calculator to make it inline with much improved display appearance of modern computer system.

The new Windows 7 Calculator now has 4 different modes :

• Standard Mode
• Statistics Mode
• Programmer Mode
• Scientific Mode

The calculator has been ported from Windows 7 pre-beta build 6801.

You can just extract the files from the rar archive and double click on calc.exe to start using it or, you can replace your existing calculator of Windows Vista with this one. Just follow the steps below:

1. copy calc.exe to C:\Windows\System32\
2. copy calc.exe.mui (in en-US folder) to C:\Windows\System32\en-US\

Download Windows-7-Calculator

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