Introduction: Matrix representation
 |
 |
 |
| ki-gub | kúr |
kigubkur is the compound word composing the transliterated Sumerian words ki-gub and kúr standing for state and variable respectively (Ngwua, 2021). Therefore, kigubkur© is a tool aimed at state-variable approach to problem solving.
Basics
Constructing a kigubkur© matrix
A matrix in kigubkur© is of the form [[]] such that elements of a row is contained inside [[]].
A row matrix
=> (def r [[1 2 3 4]])
A column matrix
=> (def c [[1][2][3][4]])
A general matrix
=> (def M [[1 2][3 4]])
- Click here to learn more on matrix representation in kigubkur©.
- Click here on how to block a pre-block kigubkur© matrix.
Order of a matrix
If m is the number of rows and n is the number of columns, the order or dimension of a matrix is expressed as m × n (Nelson, 2008). In kigubkur© the order is expressed as [m n] using the order function which is imported in the namespace as follows
=> (require '[kigubkur.construct [order :refer [order]]])
Then, to get the order of matrix
=> (order r)
[1 4]
=> (order c)
[4 1]
=> (order M)
[2 2]
References
- Nelson, D. (2008). Matrix (plural matrices). In Penguin Dictionary of Mathematics (4th ed., p. 282-283).
- Ngwua, L. (2021). kigubkur: What’s in a name? [White paper]. NeuralGraphs. https://neuralgraphs.com/misc/kigubkur/files/what_is_in_a_name.pdf