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std::
exp,
std::
expf,
std::
expl
From cppreference.com
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[edit]
Numerics library
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[edit]
Common mathematical functions
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abs(int)
labs
llabs
imaxabs
(C++11)
abs(float)
fabs
div
ldiv
lldiv
imaxdiv
(C++11)
fmod
remainder
(C++11)
remquo
(C++11)
fma
(C++11)
fmax
(C++11)
fmin
(C++11)
fdim
(C++11)
nan
nanf
nanl
(C++11)
(C++11)
(C++11)
Exponential functions
exp
exp2
(C++11)
expm1
(C++11)
log
log10
log1p
(C++11)