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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | mjames | 1 | #include "ref.h" |
| 2 | |||
| 3 | arm_status ref_mat_inverse_f32( |
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| 4 | const arm_matrix_instance_f32 * pSrc, |
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| 5 | arm_matrix_instance_f32 * pDst) |
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| 6 | { |
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| 7 | float32_t det; |
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| 8 | uint32_t i, size; |
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| 9 | arm_matrix_instance_f32 tmp; |
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| 10 | |||
| 11 | tmp.numCols = pSrc->numCols; |
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| 12 | tmp.numRows = pSrc->numRows; |
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| 13 | tmp.pData = scratchArray; |
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| 14 | |||
| 15 | det = ref_detrm(pSrc->pData,scratchArray,pSrc->numCols); |
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| 16 | |||
| 17 | size = pSrc->numCols * pSrc->numCols; |
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| 18 | |||
| 19 | ref_cofact(pSrc->pData,scratchArray,scratchArray + size,pSrc->numCols); |
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| 20 | |||
| 21 | ref_mat_trans_f32(&tmp,pDst); |
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| 22 | |||
| 23 | for(i=0;i<size;i++) |
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| 24 | { |
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| 25 | pDst->pData[i] /= det; |
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| 26 | } |
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| 27 | |||
| 28 | return ARM_MATH_SUCCESS; |
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| 29 | } |
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| 30 | |||
| 31 | arm_status ref_mat_inverse_f64( |
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| 32 | const arm_matrix_instance_f64 * pSrc, |
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| 33 | arm_matrix_instance_f64 * pDst) |
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| 34 | { |
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| 35 | float64_t det; |
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| 36 | uint32_t i, size; |
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| 37 | arm_matrix_instance_f64 tmp; |
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| 38 | |||
| 39 | tmp.numCols = pSrc->numCols; |
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| 40 | tmp.numRows = pSrc->numRows; |
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| 41 | tmp.pData = (float64_t*)scratchArray; |
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| 42 | |||
| 43 | det = ref_detrm64(pSrc->pData,(float64_t*)scratchArray,pSrc->numCols); |
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| 44 | |||
| 45 | size = pSrc->numCols * pSrc->numCols; |
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| 46 | |||
| 47 | ref_cofact64(pSrc->pData,(float64_t*)scratchArray,(float64_t*)scratchArray + size,pSrc->numCols); |
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| 48 | |||
| 49 | ref_mat_trans_f64(&tmp,pDst); |
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| 50 | |||
| 51 | for(i=0;i<size;i++) |
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| 52 | { |
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| 53 | pDst->pData[i] /= det; |
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| 54 | } |
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| 55 | |||
| 56 | return ARM_MATH_SUCCESS; |
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| 57 | } |