std::sqrt
From cppreference.com
| Defined in header
<cmath>
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| float sqrt( float arg );
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(1) | |
| double sqrt( double arg );
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(2) | |
| long double sqrt( long double arg );
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(3) | |
| double sqrt( Integral arg );
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(4) | (since C++11) |
Computes the square root of arg.
[edit] Parameters
| arg | - | Value of a floating-point or Integral type |
[edit] Return value
Square root of arg.
Domain error occurs if arg is negative. NAN is returned in that case.
[edit] See also
| (C++11)
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computes cubic root (3√x) (function) |
| raises a number to the given power (xy) (function) |
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| complex square root in the range of the right half-plane (function template) |
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| applies the function std::sqrt to each element of valarray (function template) |
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C documentation for sqrt
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