Class: AbstractMatrix

• Inheritance
• Description
• Related information
• Instance protocol
  • accessing
  • arithmetic
  • double dispatching
  • matrix operations
  • queries

Inheritance:

   Object
   |
   +--Collection
      |
      +--SequenceableCollection
         |
         +--AbstractMultidimensionalArray
            |
            +--AbstractMatrix
               |
               +--Matrix
               |
               +--MatrixAccessor

Package:

stx:libbasic

Category:

Collections-MultiDimensional

Version:

rev: 1.4 date: 2021/11/08 22:13:18

user: cg

file: AbstractMatrix.st directory: libbasic

module: stx stc-classLibrary: libbasic

Author:

cg

Description:

documentation to be added.

class:
    <a short class summary here, describing what instances represent>

responsibilities:    
    <describing what my main role is>

collaborators:    
    <describing with whom and how I talk to>

API:
    <public api and main messages>
    
example:
    <a one-line examples on how to use - can also be in a separate example method>

implementation:
    <implementation points>


[instance variables:]

[class variables:]

Related information:

Instance protocol:

 at: index

dimensions size ~~ 1 ifTrue:[self dimensionError].

 at: index put: val

dimensions size ~~ 1 ifTrue:[self dimensionError].

 subMatrix: aPoint

}

Usage example(s):

(Matrix3_3 withAll:#(11 12 13 21 22 23 31 32 33)) subMatrix:(1 @ 1)

 * aNumberOrMatrix

Answer the result of multiplying this matrix by a scalar.

Usage example(s):

|m1 m2| m1 := (Matrix[2][2]) contents:#( 1 2 5 1 ). m1 * 10

 + aMatrix

Answer the result of adding 'aMatrix' to this matrix.

Usage example(s):

|m1 m2| m1 := (Matrix[2][2]) contents:#( 1 2 5 1 ). m2 := (Matrix[2][2]) contents:#( 3 -1 2 1 ). m1 + m2

Usage example(s):

|m1| m1 := (Matrix[2][2]) contents:#( 1 2 5 1 ). m1 + 1

 - aMatrix

Answer the result of subtracting 'aMatrix' from this matrix.

Usage example(s):

|m1 m2| m1 := (Matrix[2][2]) contents:#( 1 2 5 1 ). m2 := (Matrix[2][2]) contents:#( 3 -1 2 1 ). m1 - m2

Usage example(s):

Modified (comment): / 28-02-2021 / 14:43:03 / cg

 / aNumberOrMatrix

Answer the result of dividing this matrix by a scalar.

Usage example(s):

|m1 m2| m1 := (Matrix[2][2]) contents:#( 1 2 5 1 ). m1 / 2

 differenceFromMatrix: aMatrix

Answer the result of subtracting the receiver from 'aMatrix'.
This is a slow fallback
(and even that may be tuned to avoid the repeated index computation
and useless bounds checks involved)

 productFromMatrix: aMatrix

Answer the result of multiplying 'aMatrix' with this matrix.
This is a slow fallback
(and even that may be tuned to avoid the repeated index computation
and useless bounds checks involved)

 sumFromMatrix: aMatrix

Answer the result of adding 'aMatrix' to this matrix.
This is a slow fallback
(and even that may be tuned to avoid the repeated index computation
and useless bounds checks involved)

 determinant

 minor: aPoint

Modified (format): / 10-03-2021 / 09:17:02 / cg

 transposed

return a transposed matrix

Usage example(s):

|m| m := (Matrix[3][2]) contents:#( 1 2 3 4 5 6). m transposed. m transposed transposed. m * m transposed.

 cofactor: aPoint

Modified (format): / 10-03-2021 / 09:16:48 / cg

 columns

the number of columns

 rows

the number of rows