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*The graPHIGS Programming Interface : Subroutine Reference*

## GPCMT2 - Compose Matrix 2

**GPCMT2
(***matra*,
*matrb*,
*matrix*) |

**Purpose**

Use
**GPCMT2** to perform a 33 matrix multiplication
and return the result.

Transformation Matrix A
(*matra*)
Transformation Matrix B
(*matrb*)
is computed and returned in
*matrix*

For this task, the elements of the transformation matrixes
are passed in the following order:

|m11 m12 m13|
|m21 m22 m23|---> (m11,m12,m13,m21....m33)
|m31 m32 m33|

**Parameters**

*matra* -- specified by user,
9 short floating-point numbers
Transformation matrix A.
*matrb* -- specified by user,
9 short floating-point numbers
Transformation matrix B.
*matrix* -- returned by the graPHIGS API,
9 short floating-point numbers
Composed transformation matrix.
**Error Codes**

None

**Related Subroutines**

None

**RCP code**

201330955
(X'0C00110B')

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