rand Random number between 0 and 1
 
E Euler's constant : 2.718281828459045...
ln2 Natural logarithm of 2 : 0,6931471805599453...
ln10 Natural logarithm of 10 : 2,302585092994046...
log2e Base-2 logarithm of E : 1,4426950408889633...
log10e Base-10 logarithm of E : 0,4342944819032518...
 
phi Golden Ratio : 1.61803398874989...
pi Pi number : 3.141592653589793...
 
sqrt1_2 Square root de 1/2 : 0,7071067811865476...
sqrt2 Square root de 2 : 1,4142135623730951...