tanpi

auto eve::tanpi = functor<tanpi_t>

inlineconstexpr

Header file

#include <eve/module/math.hpp>

Callable Signatures

namespace eve
{
   // Regular overload
   constexpr auto tanpi(floating_value auto x)                          noexcept; // 1
 
   // Lanes masking
   constexpr auto tanpi[conditional_expr auto c](floating_value auto x) noexcept; // 2
   constexpr auto tanpi[logical_value auto m](floating_value auto x)    noexcept; // 2
 
   // Semantic options
   constexpr auto tanpi[quarter_circle](floating_value auto x)          noexcept; // 3
}

Parameters

 * `x`: [floating value](@ref eve::floating_value).
 * `c`: [Conditional expression](@ref eve::conditional_expr) masking the operation.
 * `m`: [Logical value](@ref eve::logical_value) masking the operation.

Return value

1. Returns the elementwise tangent of the input expressed in \(\pi\) multiples. In particular:
   • If the element is \(\pm0\), \(\pm0\) is returned.
   • If the element is \(\pm\infty\), Nan is returned.
   • If the element is a Nan, NaN is returned.
2. The operation is performed conditionnaly.
3. Assumes that the inputs elements belong to \([-1/4,1/4]\) and return NaN outside.

Example