If A is an matrix, then
- A.length returns
- A.nrows returns
- A.ncolumns returns
- A.size returns column vector
- A.abs returns a copy of A whose elements are absolute values
of A
- A.norm returns the vector norm (if A is a row or column
vector), or matrix norm of A.
- A.sum returns the sum of all elements of A
- A.max returns the maximum of all elements of A
- A.min returns the minimum of all elements of A
- A.range returns [m1, m2], where m1 and m2
are the minimum and maximum of A.
- A.mean returns the average of all elements of A
- A.var returns the variance of all elements of A
- A.stddev returns the standard deviation of all elements of A
- A.rowsum returns the sum of all each row of A
- A.rowmax returns the maximum of each row of A
- A.rowmin returns the minimum of each row of A
- A.rowrange returns the range of each row of A
A.rowmean returns the average of each row of A
- A.rowvar returns the variance of each row of A
- A.rowstddev returns the standard deviation of each row of A
- A.columnsum returns the sum of all each column of A
- A.columnmax returns the maximum of each column of A
- A.columnmin returns the minimum of each column of A
- A.columnrange returns the range of each column of A
A.columnmean returns the average of each column of A
- A.columnvar returns the variance of each column of A
- A.columnstddev returns the standard deviation of each column of A
- A.sort() sorts the elements of A in ascending order
- A.rowsort() sorts each row of A in ascending order
- A.columnsort() sorts each column of A in ascending order
- A.reverse() reverses the order of all elements
- A.rowreverse() reverses the order of all elements in each row
- A.columnreverse() reverses the order of all elements in each column
- A.swaprows(j, k) swaps row j and row k of A
- A.swapcolumns(j, k) swaps column j and column k of A
- A.scalerow(j, alpha) multiply row j of A by a scalar alpha
- A.scalecolumn(j, alpha) multiply column j of A by a scalar alpha
- A.addrows(j, k, alpha) add alpha times of row k to row j of A
- A.addcolumns(j, k, alpha) add alpha times of column k
to column j of A
oz
2009-12-22