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| arm_status | arm_mat_sub_f16 (const arm_matrix_instance_f16 *pSrcA, const arm_matrix_instance_f16 *pSrcB, arm_matrix_instance_f16 *pDst) |
| | Floating-point matrix subtraction.
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| |
| arm_status | arm_mat_sub_f32 (const arm_matrix_instance_f32 *pSrcA, const arm_matrix_instance_f32 *pSrcB, arm_matrix_instance_f32 *pDst) |
| | Floating-point matrix subtraction.
|
| |
| arm_status | arm_mat_sub_f64 (const arm_matrix_instance_f64 *pSrcA, const arm_matrix_instance_f64 *pSrcB, arm_matrix_instance_f64 *pDst) |
| | Floating-point matrix subtraction.
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| |
| arm_status | arm_mat_sub_q15 (const arm_matrix_instance_q15 *pSrcA, const arm_matrix_instance_q15 *pSrcB, arm_matrix_instance_q15 *pDst) |
| | Q15 matrix subtraction.
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| |
| arm_status | arm_mat_sub_q31 (const arm_matrix_instance_q31 *pSrcA, const arm_matrix_instance_q31 *pSrcB, arm_matrix_instance_q31 *pDst) |
| | Q31 matrix subtraction.
|
| |
Subtract two matrices.
- Subraction of two 3 x 3 matrices
\[
\begin{pmatrix}
a_{1,1} & a_{1,2} & a_{1,3} \\
a_{2,1} & a_{2,2} & a_{2,3} \\
a_{3,1} & a_{3,2} & a_{3,3} \\
\end{pmatrix}
-
\begin{pmatrix}
b_{1,1} & b_{1,2} & b_{1,3} \\
b_{2,1} & b_{2,2} & b_{2,3} \\
b_{3,1} & b_{3,2} & b_{3,3} \\
\end{pmatrix}
=
\begin{pmatrix}
a_{1,1}-b_{1,1} & a_{1,2}-b_{1,2} & a_{1,3}-b_{1,3} \\
a_{2,1}-b_{2,1} & a_{2,2}-b_{2,2} & a_{2,3}-b_{2,3} \\
a_{3,1}-b_{3,1} & a_{3,2}-b_{3,2} & a_{3,3}-b_{3,3} \\
\end{pmatrix}
\]
The functions check to make sure that pSrcA, pSrcB, and pDst have the same number of rows and columns.
◆ arm_mat_sub_f16()
Floating-point matrix subtraction.
- Parameters
-
| [in] | pSrcA | points to the first input matrix structure |
| [in] | pSrcB | points to the second input matrix structure |
| [out] | pDst | points to output matrix structure |
- Returns
- execution status
◆ arm_mat_sub_f32()
Floating-point matrix subtraction.
- Parameters
-
| [in] | pSrcA | points to the first input matrix structure |
| [in] | pSrcB | points to the second input matrix structure |
| [out] | pDst | points to output matrix structure |
- Returns
- execution status
◆ arm_mat_sub_f64()
Floating-point matrix subtraction.
- Parameters
-
| [in] | pSrcA | points to the first input matrix structure |
| [in] | pSrcB | points to the second input matrix structure |
| [out] | pDst | points to output matrix structure |
- Returns
- execution status
◆ arm_mat_sub_q15()
Q15 matrix subtraction.
- Parameters
-
| [in] | pSrcA | points to the first input matrix structure |
| [in] | pSrcB | points to the second input matrix structure |
| [out] | pDst | points to output matrix structure |
- Returns
- execution status
- Scaling and Overflow Behavior
- The function uses saturating arithmetic. Results outside of the allowable Q15 range [0x8000 0x7FFF] are saturated.
◆ arm_mat_sub_q31()
Q31 matrix subtraction.
- Parameters
-
| [in] | pSrcA | points to the first input matrix structure |
| [in] | pSrcB | points to the second input matrix structure |
| [out] | pDst | points to output matrix structure |
- Returns
- execution status
- Scaling and Overflow Behavior
- The function uses saturating arithmetic. Results outside of the allowable Q31 range [0x80000000 0x7FFFFFFF] are saturated.
