Math Help List-

 Voted as Best Calculator:
 Email     Print

How to input an expression

Arithmetic operations

Addition: '+'; example: 5 + 7
Subtraction: '-'; example: 15 - 12
Multiplication: '*'; example: 5 * 2
Division: '/'; example: 18 / 3

Variables

For the online math calculator you can use 'x' as a variable; example: x + 6

Functions

The online math calculator can use predefined functions as well.
Trigonometric functions: sin, cos, tan, sinh, cosh, arcsin, arccos, arctan etc; example: sin(7)
Other functions: sqrt (square root), abs (absolute value), ln (natural logarithm), log (base 10 logarithm);
example: abs(-5)

Other

You can use other characters to create complex functions for example:
e = the mathematical constant and the base of the natural logarithm (e = 2.71828182845904523536...)
^ = to express an exponent (3^2 = 9 - 'three to the second power')
( ) = parenthesis - control the order of operations ('4*(1+2) = 12')

Examples of complex expressions

3*sin(x^3)
-2*x*ln(e^7)
sin(cos(x) * e^x)
sqrt(abs(x))