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修改函数

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misaki 2025-04-18 09:00:46 +08:00
parent f36c8a3673
commit 9bdcc93fa3
1 changed files with 19 additions and 0 deletions
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Fortran/FUNC_sign.f90 Normal file
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!符号函数
real*8 function FUNC_sign(A)
implicit none
real*8 :: A
if(isnan(A)) then
FUNC_sign = A
elseif(A>0) then
FUNC_sign = 1.0
elseif(A<0) then
FUNC_sign = -1.0
elseif(A==0) then
FUNC_sign = 0.0
end if
end function