Math
abs
abs(value) returns the absolute value of the number. If the a is negative, then return -a.
round
round(x [,N]) Rounds a value to a specified number of decimal places.
- If
Nis omitted, we consider N as 0 and the function rounds the value to the near integer, e.g.round(3.14)as 3 - If
N>0, the function rounds the value to the right of the decimal point, e.g.round(3.14,1)as 3.1 - If
N<0, the function rounds the value to the left of the decimal point. e.g.round(314.15,-2)as 300
e
e() returns a float number that is close to the number e
pi
pi() returns a float number that is close to the number π
exp
exp(x) returns a float number that is close to the exponent of the argument x.
exp2
exp2(x) returns a float number that is close to 2 to the power of x.
exp10
exp10(x) returns a float number that is close to 10 to the power of x.
log
log(x) returns a float number that is close to the natural logarithm of the argument x.
log2
log2(x) returns a float number that is close to the binary logarithm of the argument x.
log10
log10(x) returns a float number that is close to the decimal logarithm of the argument x.
sqrt
sqrt(x) returns a float number that is close to the square root of the argument x.
cbrt
cbrt(x) returns a float number that is close to the cubic root of the argument x.
lgamma
lgamma(x) the logarithm of the gamma function.
tgamma
tgamma(x)the gamma function
sin
sin(x) the sine
cos
cos(x) the cosine
tan
tan(x) the tangent
asin
asin(x) the arc sine
acos
acos(x) the arc cosine
atan
atan(x) the arc tangent
pow
pow(x,y) returns a float number that is close to x to the power of y
power
power(x,y) returns a float number that is close to x to the power of y
sign
sign(x) returns the sign of the number x. If x<0, return -1. If x>0, return 1. Otherwise, return 0.
degrees
degrees(x) converts the input value in radians to degrees. E.g. degress(3.14) returns 180.
radians
radians(x) converts the input value in degrees to radians . E.g. radians(180) returns 3.14.
is_finite
is_finite(x) return 1 when the value x is not infinite and not a NaN, otherwise return 0.
is_infinite
is_infinite(x) to return 1 when the value x is infinite, otherwise return 0.
is_nan
is_nan(x) to return 1 if the x is Not-a-Number(NaN), otherwise return 0.