deriv.multipol: Partial differentitation

In multipol: Multivariate Polynomials

Partial differentitation

Description

Partial differentiation with respect to any variable

Usage

## S3 method for class 'multipol'
deriv(expr, i, derivative = 1, ...)

Arguments

expr	A multipol
i	Dimension to differentiate with respect to
derivative	How many times to differentiate
...	Further arguments, currently ignored

Author(s)

Robin K. S. Hankin

See Also

substitute

Examples

a <- as.multipol(matrix(1:12,3,4))

deriv(a,1)     # standard usage: derivfferentiate WRT x1
deriv(a,2)     # differentiate WRT x2

deriv(a,1,2)   # second derivative
deriv(a,1,3)   # third derivative (zero multipol)

multipol documentation built on Aug. 21, 2023, 9:10 a.m.