## Mathematical Symbols Available In WeBWorK

### Explanation/Examples/Restrictions

`+` Addition.
`-` Subtraction.
`*` Multiplication can also be indicated by a space or jutaposition, e.g. `2x`, `2 x` or `2*x`, also `2(3+4)`.
`/` Division.
`^` or `**` Exponentiation; e.g. `3^2` or `3**2`.
`(` Left parenthesis - used for grouping expressions.
`)` Right parenthesis - used for grouping expressions.
`pi` This gives π, e.g. `cos(`π`)` is -1.
`e` This gives the constant e, or roughly 2.71828182845905, e.g. `ln(`e`)` is 1.
`E` Scientific Notation. For example, `2.1E2` gives 210 and `2.1E-2` gives .021.
`abs( )` The absolute value function.
`sqrt( )` The square root function. Note: Sometimes WeBWorK does not allow `sqrt( )`. In those cases, try `( )^(1/2)`.
`exp( )` The exponential function. `exp(x)` is the same as `e^x`
`log( )` or `ln( )` The natural logarithm function (base e).
`logten( )` The logarithm function, base 10.
`abs( )` The absolute value function.
`fact( )` The factorial function (only non-negative integer input allowed).
`cos( )` The cosine function (uses radians).
`sin( )` The sine function (uses radians).
`tan( )` The tangent function (uses radians).
`sec( )` The secant function (uses radians).
`csc( )` The cosecant function (uses radians).
`cot( )` The cotangent function (uses radians).
`arccos( )` or `acos( )` The arc-cosine function.
`arcsin( )` or `asin( )` The arc-sine function.
`arctan( )` or `atan( )` The arc-tangent function.

### Common Mistakes for Input

To be compiled as the semester goes on!