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mpctool
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include/mtx_ops.h
00001 #ifndef MTX_OPS_H 00002 #define MTX_OPS_H 00003 00004 #include "mpc_base.h" /* typedefs */ 00005 00006 /* matrix-vector multiplication: pout = pmtx * pvec. 00007 * pmtx has size (rows x columns) */ 00008 extern void mtx_multiply_mtx_vec(real_t pout[], const real_t pmtx[], 00009 const real_t pvec[], 00010 const uint32_t rows, 00011 const uint32_t cols); 00012 00013 /* element-wise matrix factorisation: pout = pmtx * factor. 00014 * pmtx has size (rows x columns) */ 00015 extern void mtx_scale(real_t pout[], const real_t pmtx[], 00016 const real_t factor, const uint32_t rows, 00017 const uint32_t cols); 00018 00019 /* matrix addition: pmtxc = pmta + pmtxb. 00020 * pmta, pmtb, pmtc have size (rows x columns) */ 00021 extern void mtx_add(real_t pmtxc[], const real_t pmtxa[], 00022 const real_t pmtxb[], const uint32_t rows, 00023 const uint32_t cols); 00024 00025 /* matrix substraction: pmtxc = pmta - pmtxb. 00026 * pmta, pmtb, pmtc have size (rows x columns) */ 00027 extern void mtx_substract(real_t pmtxc[], const real_t pmtxa[], 00028 const real_t pmtxb[], const uint32_t rows, 00029 const uint32_t cols); 00030 00031 /* elementwise 2-sided vector saturation. 00032 * lower[i] < vec[i] < upper[i]. pvec has size (rows x 1) */ 00033 extern void mtx_saturate_vec(real_t pvec[], const real_t plower[], 00034 const real_t pupper[], 00035 const uint32_t rows); 00036 00037 /* matrix transposition. mtxout[j,i] = mtxin[i,j]. 00038 * mtxin has size (rows x columns) */ 00039 extern void mtx_transpose(real_t * mtxout, const real_t * mtxin, 00040 const uint32_t rows, const uint32_t cols); 00041 00042 /* elementwise vector maximum against zero 00043 * pmax[i] = max(pa[i], 0). pmax has size (rows x 1) */ 00044 extern void mtx_max_vec_zero(real_t pmax[], const uint32_t rows); 00045 00046 /* elementwise vector minimum against zero 00047 * pmin[i] = min(pa[i], 0). pmin has size (rows x 1) */ 00048 extern void mtx_min_vec_zero(real_t pmin[], const uint32_t rows); 00049 00050 #endif
