Following website has been used to get some of the commonly used R functions
http://www.stats4stem.org/r-math-functions.html
List of functions used:
log (10) # Natural logarithm with base e=2.7182
log10(5) # Common logarithm with base 10
log(5, base=10)
sqrt (16)
abs (3-7)
pi
round(pi,0) # Round pi to a whole number
round(pi,1) # Round pi to 1 decimal place
round(pi,4) # Round pi to 4 decimal places
options()
options(digits=15)
factorial(5)
floor(15.9) # Rounds down
ceiling(15.1) # Rounds up
cos(.5) # Cosine Function
sin(.5) # Sine Function
tan(.5) # Tangent Function
acos(0.8775826) # Inverse Cosine
asin(0.4794255) # Inverse Sine
atan(0.5463025) # Inverse Tangent
