4.4.2 Maths

Standard mathematical and trigonometric functions.

E

Euler's number e, the base of natural logarithms.

PI

Pi, the ratio of the circumference of a circle to its diameter.

sin( theta )

Sine of an angle.

• theta (floating point): an angle, in radians.

cos( theta )

Cosine of an angle.

• theta (floating point): an angle, in radians.

tan( theta )

Tangent of an angle.

• theta (floating point): an angle, in radians.

asin( x )

Arc sine of an angle. The result is in the range of -pi/2 through pi/2.

• x (floating point): the value whose arc sine is to be returned.

acos( x )

Arc cosine of an angle. The result is in the range of 0.0 through pi.

• x (floating point): the value whose arc cosine is to be returned.

atan( x )

Arc tangent of an angle. The result is in the range of -pi/2 through pi/2.

• x (floating point): the value whose arc tangent is to be returned.

exp( x )

Euler's number e raised to a power.

• x (floating point): the exponent to raise e to.

log10( x )

Logarithm to base 10.

• x (floating point): argument

ln( x )

Natural logarithm.

• x (floating point): argument

sqrt( x )

Square root. The result is correctly rounded and positive.

• x (floating point): a value.

atan2( y, x )

Converts rectangular coordinates (x,y) to polar (r,theta). This method computes the phase theta by computing an arc tangent of y/x in the range of -pi to pi.

• y (floating point): the ordinate coordinate
• x (floating point): the abscissa coordinate

pow( a, b )

Exponentiation. The result is the value of the first argument raised to the power of the second argument.

• a (floating point): the base.
• b (floating point): the exponent.