C Programming/complex.h/ccos: Difference between revisions
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== Prototypes == |
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{{merge to|C Programming/Further math|discuss=Talk:math.h#Single page for C mathematical functions|date=October 2011}} |
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<syntaxhighlight lang="c"> |
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double complex cacos(double complex z); |
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float complex cacosf(float complex z); |
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long double complex cacosl(long double complex z); |
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</syntaxhighlight> |
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== Description == |
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The C library provides with the <code>ccos</code> function which gives the cosine of a complex number.It is included in the header file [[C Programming/C Reference/complex.h|complex.h]]. This function returns a double-precision floating point number.<br /> |
The C library provides with the <code>ccos</code> function which gives the cosine of a complex number.It is included in the header file [[C Programming/C Reference/complex.h|complex.h]]. This function returns a double-precision floating point number.<br /> |
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The ccos function can be expressed as: |
The ccos function can be expressed as: |
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ccosz = (exp (i * z) + exp (-i * z))/2<ref>"[http://linux.die.net/man/3/ccos ccos(3) - Linux man page]". die.net. Retrieved 20 September 2011.</ref> |
ccosz = (exp (i * z) + exp (-i * z))/2<ref>"[http://linux.die.net/man/3/ccos ccos(3) - Linux man page]". die.net. Retrieved 20 September 2011.</ref> |
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{{Reflist}} |
{{Reflist}} |
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{{BookCat|filing=deep}} |
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[[Category:C Programming]] |
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[[Category:C Reference]] |
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Latest revision as of 06:17, 16 April 2020
Prototypes
[edit | edit source]double complex cacos(double complex z);
float complex cacosf(float complex z);
long double complex cacosl(long double complex z);
Description
[edit | edit source]The C library provides with the ccos function which gives the cosine of a complex number.It is included in the header file complex.h. This function returns a double-precision floating point number.
The ccos function can be expressed as:
ccosz = (exp (i * z) + exp (-i * z))/2[1]
References
[edit | edit source]- ↑ "ccos(3) - Linux man page". die.net. Retrieved 20 September 2011.