seq: seq method for three velocities

Description Usage Arguments Details Author(s) Examples

Description

Simplified version of seq() for three-velocities.

Usage

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## S3 method for class '3vel'
seq(from, to, len, ...)

Arguments

from,to

Start and end of sequence

len

Length of vector returned

...

Further arguments (currently ignored)

Details

seq(a,b,n) returns a + t*(-b+a) where t is numeric vector seq(from=0,to=1,len=n).

This definition is one of several plausible alternatives, but has the nice property that the first and last elements are exactly equal to the a and b respectively.

Author(s)

Robin K. S. Hankin

Examples

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a <- as.3vel(c(4,5,6)/9)
b <- as.3vel(c(-5,6,8)/14)
x <- seq(a,b,len=9)

x[1]-a # should be zero
x[9]-b # should be zero


jj <- a + seq(0,1,len=9)*(b-a)

jj-x   # decidedly non-zero

RobinHankin/gyrogroup documentation built on Feb. 19, 2019, 3:20 a.m.