RinAction - R Functions - Math Functions

gistfile1.r

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#                 R in Action - Advanced Data Management                      # 
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##             Basic Math Functions            ##
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# abs(x)                    -- Absolute value
# sqrt(x)                   -- Square root
# ceiling(x)                -- ceiling(3.475) returns 4.
# floor(x)                  -- floor(3.475) returns 3.
# trunc(x)                  -- trunc(5.99) returns 5.
# round(x, digits=n)        -- round(3.475, digits=2) returns 3.48.
# signif(x, digits=n )      -- signif(3.475, digits=2) returns 3.5.
# cos(x),sin(x),tan(x)      -- Cosine, sine, and tangent
# acos(x),asin(x),atan(x)   -- Arc-cosine, arc-sine, and arc-tangent
# cosh(x),sinh(x),tanh(x)   -- Hyperbolic cosine, sine, and tangent
# acosh(x),asinh(x),atanh(x)-- Hyperbolic arc-cosine, arc-sine, and arc-tangent
# log(x,base=n)             -- Logarithm of x to the base n
# log(x)                    -- Natural logarithm (log(10) returns 2.3026)
# log10(x)                  -- Common logarithm (log10(10) returns 1)