R  Math Functions
R Code 
Examples 
Function 
a + b 

Addition 
a  b 

Subtraction 
a * b 

Multiplication 
a / b 

Division 
2 + 4 * 5 

Order of Operations 
abs(ab) 

Absolute Value 
factorial(x) 

Factorial of x (x!) 
x^n 

x raised to the nth power 
xen 

x * 10n 
log10(x) 

Common logarithm of x with base 10 
log(x, n) 

Logarithm of x with base n 
log(x) 

Natural logarithm with base e (2.1782) 
exp(n) 

Exponential function: en 
sqrt(x) 

Square root of x 
floor(x) 

Rounds x down 
ceiling(x) 

Rounds x up 
pi 

3.141593 
round(x, n) 

Round a number x to n decimal places 
round(pi, 0) 

Round pi to a whole number 
round(pi, n) 

Round pi to n decimal places 
cos(x) 

Cosine of x 
sin(x) 

Sine of x 
tan(x) 

Tangent of x 
acos(x) 

Inverse cosine (arccosine)of x 
asin(x) 

Inverse sine (arcsine) of x 
atan(x) 

Inverse tangent (arctangent) of x 
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