Matrix Subtraction

Collaboration diagram for Matrix Subtraction:

Functions
void	tpt_mat_sub_f32 (f32_t *aOutMat, const f32_t *aInMatA, const f32_t *aInMatB, uint16_t aRows, uint16_t aCols)
	Floating-point matrix subtraction. More...
void	tpt_mat_sub_f64 (f64_t *aOutMat, const f64_t *aInMatA, const f64_t *aInMatB, uint16_t aRows, uint16_t aCols)
	Floating-point matrix subtraction. More...
void	tpt_mat_sub_q15 (q15_t *aOutMat, const q15_t *aInMatA, const q15_t *aInMatB, uint16_t aRows, uint16_t aCols)
	Q15 matrix subtraction. More...
void	tpt_mat_sub_q31 (q31_t *aOutMat, const q31_t *aInMatA, const q31_t *aInMatB, uint16_t aRows, uint16_t aCols)
	Q31 matrix subtraction. More...

Detailed Description

Subtract two matrices.

Subtraction of two 3 x 3 matrices

The caller should ensure that aOutMat, aInMatA and aInMatB have the have the same number of rows and columns. There are separate functions for floating-point, Q15, and Q31 data types.

Function Documentation

tpt_mat_sub_f32()

void tpt_mat_sub_f32	(	f32_t *	aOutMat,
		const f32_t *	aInMatA,
		const f32_t *	aInMatB,
		uint16_t	aRows,
		uint16_t	aCols
	)

Floating-point matrix subtraction.

Parameters

[out]	aOutMat	points to output matrix
[in]	aInMatA	points to first input matrix
[in]	aInMatB	points to second input matrix
[in]	aRows	rows of matrix
[in]	aCols	columns of matrix

Returns

none

tpt_mat_sub_f64()

void tpt_mat_sub_f64	(	f64_t *	aOutMat,
		const f64_t *	aInMatA,
		const f64_t *	aInMatB,
		uint16_t	aRows,
		uint16_t	aCols
	)

Floating-point matrix subtraction.

Parameters

[out]	aOutMat	points to output matrix
[in]	aInMatA	points to first input matrix
[in]	aInMatB	points to second input matrix
[in]	aRows	rows of matrix
[in]	aCols	columns of matrix

Returns

none

tpt_mat_sub_q15()

void tpt_mat_sub_q15	(	q15_t *	aOutMat,
		const q15_t *	aInMatA,
		const q15_t *	aInMatB,
		uint16_t	aRows,
		uint16_t	aCols
	)

Q15 matrix subtraction.

Parameters

[out]	aOutMat	points to output matrix
[in]	aInMatA	points to first input matrix
[in]	aInMatB	points to second input matrix
[in]	aRows	rows of matrix
[in]	aCols	columns of matrix

Returns

none

Scaling and Overflow Behavior

The function uses saturating arithmetic. Results outside of the allowable Q15 range [0x8000 0x7FFF] are saturated.

tpt_mat_sub_q31()

void tpt_mat_sub_q31	(	q31_t *	aOutMat,
		const q31_t *	aInMatA,
		const q31_t *	aInMatB,
		uint16_t	aRows,
		uint16_t	aCols
	)

Q31 matrix subtraction.

Parameters

[out]	aOutMat	points to output matrix
[in]	aInMatA	points to first input matrix
[in]	aInMatB	points to second input matrix
[in]	aRows	rows of matrix
[in]	aCols	columns of matrix

Returns

none

Scaling and Overflow Behavior

The function uses saturating arithmetic. Results outside of the allowable Q31 range [0x80000000 0x7FFFFFFF] are saturated.