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Percentage Calculator

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))




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