Difference between revisions of "Documentation/How Tos/Calc: MUNIT function"
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| − | * [[Documentation/How_Tos/Calc: MDETERM function|MDETERM]] | + | * [[Documentation/How_Tos/Calc: MDETERM function|MDETERM]] |
| − | * [[Documentation/How_Tos/Calc: MINVERSE function|MINVERSE]] | + | * [[Documentation/How_Tos/Calc: MINVERSE function|MINVERSE]] |
* [[Documentation/How_Tos/Calc: MMULT function|MMULT]] | * [[Documentation/How_Tos/Calc: MMULT function|MMULT]] | ||
Revision as of 14:27, 26 February 2009
MUNIT
Returns a unit (identity) matrix of a given size.
Syntax:
MUNIT(size)
- returns the unit matrix, also known as the identity matrix I, of size size (an integer greater than zero).
- The identity matrix has ones on the leading diagonal, and zeroes elsewhere.
- MUNIT returns an array, and must be entered as an array formula (for example by using Cntrl-Shift-Enter rather than just Enter).
Example:
=MUNIT(2)
- when entered as an array formula in cell B3, returns {1;0|0;1}, so that B3, C3, B4, C4 show 1, 0, 0, 1 respectively.
