RKalk

abs( list ⋅ matrix ⋅ number ) absolute value click for more: Returns the absolute value of each element if the argument is a list or a matrix.
angle( number ) complex phase angle click for more: Returns the complex phase angle of the argument.
cos( list ⋅ number ) cosine click for more: Returns the cosine of each element if the argument is a list. In a right triangle, $tex:\cos(x) = \text{adjacent}/\text{hypotenuse}$ .
cosh( number ) hyperbolic cosine click for more: Returns the hyperbolic cosine of the argument.
coshinv( number ) inverse hyperbolic cosine click for more: Returns the inverse hyperbolic cosine of the argument.
cosinv( list ⋅ number ) inverse cosine click for more: Returns the inverse cosine of each element if the argument is a list.
cot( number ) cotangent click for more: Returns the cotangent of the argument.
csc( number ) cosecant click for more: Returns the cosecant of the argument.
dim( list ) dimensions click for more: Returns the number of elements in a list, or if the argument is a matrix, returns a two-element list {num rows, num cols}
exp( number ) exponential function click for more: Returns the exponential function of the argument.
fPart( number ) fractional part click for more: Returns the fractional part of the argument.
imag( number ) imaginary part click for more: Returns the imaginary part of the argument.
iPart( number ) integer part click for more: Returns the integer part of the argument.
lg( number ) logarithm base 2 click for more: Returns the logarithm base 2 of the argument.
ln( number ) logarithm base e click for more: Returns the logarithm base e of the argument.
log( number ) logarithm base 10 click for more: Returns the logarithm base 10 of the argument.
max( list ) maximum element click for more: Returns the largest element in the argument.
mean( list ) arithmetic mean click for more: Returns the mean of the elements in the argument.
min( list ) minimum element click for more: Returns the smallest element in the argument.
nDeriv( expression , variable , value , [ epsilon ] ) numerical derivative click for more: Returns the derivative of $tex:f(\text{variable}) = \text{expression}$ evaluated at the point $tex:\text{variable} = \text{value}$ . $tex:\frac{df}{dx}(val) = \frac{f(val + eps) - f(val - eps)}{2*eps}$
real( number ) real part click for more: Returns the real part of the argument.
sec( number ) secant click for more: Returns the secant of the argument.
sin( list ⋅ number ) sine click for more: Returns the sine of each element if the argument is a list. In a right triangle, $tex:\sin(x) = \text{opposite}/\text{hypotenuse}$ .
sinh( number ) hyperbolic sine click for more: Returns the hyperbolic sine of the argument.
sinhinv( number ) inverse hyperbolic sine click for more: Returns the inverse hyperbolic sine of the argument.
sininv( list ⋅ number ) inverse sine click for more: Returns the inverse sine of each element if the argument is a list.
sortA( list ) sorted copy (ascending order) click for more: Returns a copy of the argument, sorted in ascending order.
sortD( list ) sorted copy (descending order) click for more: Returns a copy of the argument, sorted in descending order.
sqrt( list ⋅ number ) square root click for more: Returns the square root of each element if the argument is a list.
stdDev( list ) sample standard deviation click for more: the sample standard deviation of a data set that takes on values $tex:x_1, x_2, \dots x_N$ is an unbiased estimator for the standard deviation of a population. If $tex:\bar{x}$ denotes the mean, is given by the following. $tex:s = \sqrt{\frac{1}{N-1}\sum_{i=1}^{N} \left(x_i - \bar{x} \right)^2}$
sum( list ) summation click for more: Sum of the elements in a list.
tan( list ⋅ number ) tangent click for more: Returns the tangent of each element if the argument is a list. In a right triangle, $tex:\tan(x) = \text{opposite}/\text{adjacent}$ .
tanh( number ) hyperbolic tangent click for more: Returns the hyperbolic tangent of the argument.
tanhinv( number ) inverse hyperbolic tangent click for more: Returns the inverse hyperbolic tangent of the argument.
taninv( list ⋅ number ) inverse tangent click for more: Returns the inverse tangent of each element if the argument is a list.

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