E.V.E
v2023.02.15
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gamma_p_inv
auto eve::gamma_p_inv =
functor
<gamma_p_inv_t>
inline
constexpr
Header file
#include <eve/module/special.hpp>
Callable Signatures
namespace
eve
{
// Regular overload
constexpr
auto
gamma_p_inv
(
floating_value
auto
x,
floating_value
auto
y)
noexcept
;
// 1
// Lanes masking
constexpr
auto
gamma_p_inv
[
conditional_expr
auto
c](
floating_value
auto
x,
floating_value
auto
y)
noexcept
;
// 2
constexpr
auto
gamma_p_inv
[
logical_value
auto
m](
floating_value
auto
x,
floating_value
auto
y)
noexcept
;
// 2
}
eve::conditional_expr
Specifies that a type is a Conditional Expression.
Definition
conditional.hpp:28
eve::floating_value
The concept floating_value<T> is satisfied if and only if T satisfies eve::value and the element type...
Definition
value.hpp:116
eve::logical_value
The concept logical_value<T> is satisfied if and only if T satisfies eve::value and the element type ...
Definition
value.hpp:132
eve::gamma_p_inv
constexpr auto gamma_p_inv
elementwise_callable object computing the inverse of the normalized lower incomplete function.
Definition
gamma_p_inv.hpp:80
eve
EVE Main Namespace.
Definition
abi.hpp:18
Parameters
x
,
y
:
floating value
.
c
:
Conditional expression
masking the operation.
m
:
Logical value
masking the operation.
Return value
The value of the inverse of the normalized lower incomplete \(\Gamma\) function relative to the first parameter is returned.
The operation is performed conditionnaly
.
External references
Wikipedia: Incomplete gamma function
DLMF
Example
// revision 1
#include <eve/module/special.hpp>
#include <iostream>
int
main()
{
eve::wide
wk = {1.0e-3, 0.3, 0.75, 5.5};
eve::wide
wp = {10.0, 0.5, 20.7, 1.0};
std::cout <<
"<- wk = "
<< wk <<
"\n"
;
std::cout <<
"<- wp = "
<< wp <<
"\n"
;
std::cout <<
"-> gamma_p(wk, wp) = "
<<
eve::gamma_p
(wk, wp) <<
"\n"
;
std::cout <<
"-> gamma_p[ignore_last(2)](wk, wp)= "
<<
eve::gamma_p
[
eve::ignore_last
(2)](wk, wp) <<
"\n"
;
std::cout <<
"-> gamma_p[wk > 0.5](wk, wp) = "
<<
eve::gamma_p
[wk > 0.5](wk, wp) <<
"\n"
;
}
eve::gamma_p
constexpr auto gamma_p
elementwise_callable object computing the normalized lower incomplete function.
Definition
gamma_p.hpp:77
eve::ignore_last
Conditional expression ignoring the k last lanes from a eve::simd_value.
Definition
conditional.hpp:332
eve::wide
Wrapper for SIMD registers.
Definition
wide.hpp:70
eve