[ Mathematische-Funktionen ]
abs
acos
asin
atan
atan2
base_convert
bcadd
bccomp
bcdiv
bcmod
bcmul
bcpow
bcscale
bcsqrt
bcsub
bindec
ceil
cos
decbin
dechex
decoct
deg2rad
exp
floor
getrandmax
hexdec
log
log10
max
min
mt_getrandmax
mt_rand
mt_srand
number_format
octdec
pi
pow
rad2deg
rand
round
sin
sqrt
srand
tan