inversions

inversions() counts the number of inversions of a permutation.

 Permutation 

When using the R package  'exams'  to write mathematics questions in 'Sweave' files, the output of a lot of R functions need to be adjusted for display in mathematical formulas. Specifically, the functions were accumulated when writing questions for the  topics of the mathematics courses College Algebra, Precalculus, Calculus, Differential Equations, Introduction to Probability, and Linear Algebra.  The output of the developed functions can be used in 'Sweave' files.

Qingwen Hu

Tex4exams

Generating 'Sweave' Code for 'R/exams' Questions in Mathematics

inversions function

<dl> <dt>x</dt>
<dd>a permutation of 1, 2, ..., n.</dd></dl>

Arguments

Count the number of total inversions of a permutation — inversions

<dl>

 <dt>x</dt>
<dd>a permutation of 1, 2, ..., n.</dd>

</dl>

inversions: Count the number of total inversions of a permutation

Description

Usage

Value

Arguments

Details

See Also

Examples