数学函数
abs
acos
acosh
asin
asinh
atan
atan2
atanh
bround
cbrt
ceil
ceilling
cos
cosh
cot
csc
degrees
div
e
exp
exp2
expm1
floor
greatest
hypot
isnan
least
ln
log
log10
log1p
log2
median
mod
pi
pmod
pow
radians
rand
randn
random
round
sign
sin
sinh
sqrt
tan
tanh