Commit caddeec

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add matrix product operation

1 parent 947ed2f commit caddeecCopy full SHA for caddeec

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+30

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+30

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lines changed

Lines changed: 4 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -8,9 +8,12 @@ public class test : MonoBehaviour`
`8`	`8`	`void Start()`
`9`	`9`	`{`
`10`	`10`	`float[] x = new float[6] { 1, 2, 3, 4, 5, 6 };`
	`11`	`+ float[] y = new float[6] { 1, 2, 3, 4, 5, 6 };`
`11`	`12`
`12`	`13`	`Matrix m = new Matrix(2, 3, x);`
`13`		`- Debug.Log(m.ToString());`
	`14`	`+ Matrix m2 = new Matrix(3, 2, y);`
	`15`	`+`
	`16`	`+ Debug.Log((m * m2).ToString());`
`14`	`17`	`}`
`15`	`18`
`16`	`19`	`// Update is called once per frame`

Lines changed: 26 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -54,4 +54,30 @@ public override string ToString()`
`54`	`54`	`throw new Exception("The two matrixes must be the same length!");`
`55`	`55`	`}`
`56`	`56`	`}`
	`57`	`+`
	`58`	`+ static public Matrix operator *(Matrix a, Matrix b)`
	`59`	`+ {`
	`60`	`+ if (a.rows == b.cols)`
	`61`	`+ {`
	`62`	`+ float[] resultValues = new float[a.rows * b.cols];`
	`63`	`+`
	`64`	`+ for (int i = 0; i < a.rows; i++)`
	`65`	`+ {`
	`66`	`+ for (int j = 0; j < b.cols; j++)`
	`67`	`+ {`
	`68`	`+ for (int k = 0; k < a.cols; k++)`
	`69`	`+ {`
	`70`	`+ resultValues[i * b.cols + j] += a.values[i * a.cols + k] * b.values[k * b.cols + j];`
	`71`	`+ }`
	`72`	`+ }`
	`73`	`+ }`
	`74`	`+`
	`75`	`+ Matrix result = new Matrix(a.rows, b.cols, resultValues);`
	`76`	`+ return result;`
	`77`	`+ }`
	`78`	`+ else`
	`79`	`+ {`
	`80`	`+ throw new Exception("The number of rows of matrix A must match the number os columns of B!");`
	`81`	`+ }`
	`82`	`+ }`
`57`	`83`	`}`

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