esv::sqrt

esv::sqrt

Do not catch wild animals.

esv::sqrt

esv::sqrt calculates the square root of a real value. The parameter passed to esv::sqrt can be any real type (esv::real_meric), but the returned result is always floating type. If the parameter is negative, it returns NaN value (esv::nan_v result).

Calling Sig :

constexpr auto result = esv::sqrt(value);

constexpr auto result = esv::sqrt.fn<return_type>(value);

esv::sqrt(value) :

It always returns a float value.
The returned float type is one of esv::f32, esv::f64, esv::f128, esv::fmax, esv::fx32, esv::fx64, esv::fx128, esv::fxmax.
If value is negative, it returns esv::nan_v<return_float_type> .
If you want to check if the return value is nan, you'd better use esv::is_nan(value), as the return_float_type is uncertainty.
constexpr support.

esv::sqrt.fn<return_type>(value) :

The result will be converted to return_type .

Header

#include <esvcpp/math.hpp>

c++ example

#include <esvcpp/core.hpp>
#include <esvcpp/math.hpp>

int main()
{
	constexpr auto a = esv::sqrt(3);
	constexpr auto b = esv::sqrt(3.4);
	constexpr auto c = esv::sqrt(esv::ix32{2});
	constexpr auto d = esv::sqrt(esv::fx32{2.8});
	constexpr auto e = esv::sqrt(-7);

	esv::print(a,b,c,d,e);
/*output:
1.732051 1.843909 1.414214 1.673320 nan
*/

	static_assert(esv::is_nan(e));
}

See Also