==========Standard C Math==========

|[[abs]]|absolute value|
|[[acos]]|arc cosine|
|[[asin]]|arc sine|
|[[atan]]|arc tangent|
|[[atan2]]|arc tangent, using signs to determine quadrants|
|[[ceil]]|the smallest integer not less than a certain value|
|[[cos]]|cosine|
|[[cosh]]|hyperbolic cosine|
|[[div]]|returns the quotient and remainder of a division|
|[[exp]]|returns "e" raised to a given power|
|[[fabs]]|absolute value for floating-point numbers|
|[[floor]]|returns the largest integer not greater than a given value|
|[[fmod]]|returns the remainder of a division|
|[[frexp]]|decomposes a number into scientific notation|
|[[labs]]|absolute value for long integers|
|[[ldexp]]|computes a number in scientific notation|
|[[ldiv]]|returns the quotient and remainder of a division, in long integer form|
|[[log]]|natural logarithm (to base e)|
|[[log10]]|common logarithm (to base 10)|
|[[modf]]|decomposes a number into integer and fractional parts|
|[[pow]]|returns a given number raised to another number|
|[[sin]]|sine|
|[[sinh]]|hyperbolic sine|
|[[sqrt]]|square root|
|[[tan]]|tangent|
|[[tanh]]|hyperbolic tangent|

== Compiling with gcc ==

In order to use some of the above functions, certain versions of the gcc compiler require the math library to be explicitly linked in using the ''-lm'' command-line option.