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{{C Guide}}
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{{c title|Math Functions}}
While [[basic arithmetics - C|basic arithmetics]] works well for many tasks, sometimes more complex math is needed. C provides a set of '''math functions''' for performing some common math operations which include trigonometric functions, exponential and logarithmic functions, power and absolute-value functions, and nearest integer functions.
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While {{C|basic arithmetics}} works well for many tasks, sometimes more complex math is needed. C provides a set of '''math functions''' for performing some common math operations which include trigonometric functions, exponential and logarithmic functions, power and absolute-value functions, and nearest integer functions.
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The function prototype and macro definitions for the math functionality discussed in this article can be can accessed by including the {{C|math.h|<math.h>}} standard header.
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On some compilers, due to historical reasons, the math library is stored separately from the rest of the standard C library. In those compilers, you must specify an additional compiler option <code>-lm</code> to link against the math library.
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[[Category:C programming language]]

Latest revision as of 07:25, 4 January 2015

While basic arithmetics works well for many tasks, sometimes more complex math is needed. C provides a set of math functions for performing some common math operations which include trigonometric functions, exponential and logarithmic functions, power and absolute-value functions, and nearest integer functions.

The function prototype and macro definitions for the math functionality discussed in this article can be can accessed by including the <math.h> standard header.

On some compilers, due to historical reasons, the math library is stored separately from the rest of the standard C library. In those compilers, you must specify an additional compiler option -lm to link against the math library.