Functions in the standard math module.
math.log(x, base)
With one argument, return the natural logarithm of x (to base e). With two arguments, return the logarithm of x to the given base, calculated as log(x)/log(base).
Math.factorial(x)
factorial (3! = 3 * 2 * 1)
Math.sin(x)
sine of x (x in radians)
Math.tan(x)
tangent of x
math.fabs(x)
Absolute value
math.hypot(x,y)
Length of vector from origin
math.e(constant)
Mathematical constant 2.718281...
math.pi(constant)
Mathematical constant 3.141592...
Math.pow(x,y)
Raise to power
Math.fmod(x)
Remainder of division
math.log2(x)
Return the base-2 logarithm of x. This is usually more accurate than log(x, 2).
math.gcd(a, b)
Return the greatest common divisor of the integers a and b. If either a or b is nonzero, then the value of gcd(a, b) is the largest positive integer that divides both a and b. gcd(0, 0) returns 0.
math.log1p(x)
Return the natural logarithm of 1+x (base e). The result is calculated in a way which is accurate for x near zero.
Math.sqrt(x)
Returns the square root of x
math.floor(x)
Round down value
Math.ciel(x)
Round up value
Determine the final value of z. x = 2.3 z = math.floor(x)
The value of z is 2. math.floor(2.3) returns 2.
Math.acos(x)
Arc cosine
Math.asin(x)
Arc sine
Math.atan(x)
Arc tangent returns the angle in radians for the inverse of tangent
Math.atan2(y,x)
Arc tangent with two parameters
math.radians(x)
Convert degrees to radians
math.degrees(x)
Convert from radians to degrees
Math.cos(x)
Cosine
math.erf(x)
Error function
Math.exp(x)
Exponential function ex
math.fsum(x)
Floating-point sum
math.gamma(x)
Gamma function
math.cosh(x)
Hyperbolic cosine
math.sinh(x)
Hyperbolic sine
What is another name for a sequence of instructions?
A sequence of instructions that solves a problem is called an algorithm.
Determine the final value of z. z = 4.5 z = math.pow(math.floor(z), 2.0)
The value of z is 16.0. math.floor(z) returns 4. Then, math.pow(4, 2.0) returns 16.0.
Determine the final value of z. z = 4 z = math.factorial(z)
The value of z is 24. 4 * 3 * 2 * 1 is 24.
Determine the final value of z. x = 2.3 z = math.ceil(x)
The value of z is 3. math.ceil(2.3) returns 3.
Determine the final value of z. z = 15.75 z = math.sqrt(math.ceil(z))
The value of z is 4.0. math.ceil(z) returns 16. Then, math.sqrt(16) returns 4.0.
