Returns the rank of a two-dimensional floating point array which is interpreted as a matrix.
Mat Rank x=a([i, j])[,n]
Mat Rang x=a([i, j])[,n]
a():name of a two-dimensional floating point array
x:aexp
i, j, n:integer expression
Mat Rank x=a([i, j])[,n] prints the rank of a square matrix. Analogous to Mat Det and Mat QDet an arbitrary row and column offset can be specified.
To process a section of a matrix, a number of elements is specified in n. An internal matrix of (n, n) type is thereby created at row i and column j.
OpenW # 1 : Win_1.FontName = "courier new"
Data 2,4.5,6,3.2,7,1.7,-4,12
Data -3,5,9,-2.1,6,9,11,3
Data 11.4,2.3,6,3.2,6,1.2,-5,7
Data 3,5,6,8.2,4.1,-5.2,6.2,7.9
Data 1,2.3,9,8.1,0,4.2,5,3.7
Data 4.2,7.1,8.3,9.1,-5,-3,-1,0
Data 2.0,3,9.1,0,0,7.1,-3,8.8
Data 2.1,9,3.3,4,5,-1,-2,0
Global Double a(1 ... 8, 1 ... 8), x
Mat Read a()
Mat Print a(), 2, 0
Mat Rank x = a()//calculate the rank
Print "Rank = "; x
{Created by Sjouke Hamstra; Last updated: 15/10/2014 by James Gaite}