Operations: 


Variable: 


Functions: 
random()   pseudorandom number between 0 and 1 

tan(x)   Tangent of an angle 
sqrt(x)   Square root of a number 
sin(x)   Sine of an angle 
round(x)   Round a number to the nearest integer 
log(x)   Natural logarithm of a number 
floor(x)   Integer equal to, or the next integer less than, the number passed to it 
exp(x)   E^{x} where E is Euler's constant 
cos(x)   Cosine of an angle 
ceil(x)   Integer equal to, or the next integer greater than, the number passed to it 
atan(x)   Arctangent of a number 
asin(x)   Arcsine of a number 
acos(x)   Arccosine of a number 
abs(x)   Absolute value of a number 

pow(x,y)   Value of x to the power of y x^{y} 
min(x,y)   Lesser of the two numbers 
max(x,y)   Greater of the two numbers 
atan2(x,y)   Angle of an (x,y) point 


Constants: 
SQRT2   Square root of 2 
SQRT1_2   1 divided by the square root of 2 
PI   Pi 
LOG10E   Base 10 logarithm of E 
LOG2E   Base 2 logarithm of E 
LN10   Natural logarithm of 10 
LN2   Natural logarithm of 2 
E   Base of natural logarithms 

