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Toy/getting-started/math.md

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# Math Library
The math library is a collection of mathematical functions and constants that provide a wide range of calculations that are commonly used. All functions in this library take either integers or floats as parameters and will return the result as a float.
The math library can usually be accessed with the `import` keyword:
```
import math;
```
## Defined Constants
### PI: float
This constant represents the ratio of a circle's circumference to its diameter. It's value is approximately `3.14159265358979323846`.
### E: float
This constant represents Euler's number, the base of natural logarithms. It's value is approximately `2.71828182845904523536`.
### EPSILON: float
This constant represents the acceptable amount of error when comparing floats with the functions provided by this library (see [Defined Comparison Functions](#defined-comparison-functions)). It's default value is `0.000001`.
### NAN: float
This constant represents "Not-a-Number", often returned when a calculation is impossible e.g. `sqrt(-1)`.
### INFINITY: float
This constant represents an uncountable value.
## Defined Power Functions
### pow(x, y): float
This function returns `x` to the power of `y`.
### sqrt(x): float
This function returns the square root of `x`.
### qbrt(x): float
This function returns the cube root of `x`.
### hypot(x, y): float
This function returns the length of the hypotenuse, assuming `x` and `y` are the legs in a right-angle triangle.
## Defined Trigonometric Functions
## toRadians(d): float
This function converts `d` into radians.
## toDegrees(r): float
This function converts `r` into degrees.
## sin(x): float
This function returns the sine of `x`.
## cos(x): float
This function returns the cosine of `x`.
## tan(x): float
This function returns the tangent of `x`.
## asin(x): float
This function returns the arc sine of `x`.
## acos(x): float
This function returns the arc cosine of `x`.
## atan(x): float
This function returns the arc tangent of `x`.
## Defined Hyperbolic Functions
## sinh(x): float
This function returns the hyperbolic sine of `x`
## cosh(x): float
This function returns the hyperbolic cosine of `x`
## tanh(x): float
This function returns the hyperbolic tangent of `x`
## asinh(x): float
This function returns the inverse hyperbolic sine of `x`
## acosh(x): float
This function returns the inverse cosine sine of `x`
## atanh(x): float
This function returns the inverse tangent sine of `x`
## Defined Comparison Functions
### checkIsNaN(x): bool
This function returns true if `x` is NaN, otherwise it returns false.
### chechIsFinite(x): bool
This function returns true if `x` is finite, otherwise it returns false.
### chechIsInfinite(x): bool
This function returns true if `x` is Infinite, otherwise it returns false.
### epsilionCompare(x, y): bool
This function returns true if `x` and `y` are within `EPSILON` of each other, otherwise it returns false. This is very useful for compairing floating point values.