diff options
Diffstat (limited to '2.3-1/src/c/matrixOperations/cross/scrossa.c')
-rw-r--r-- | 2.3-1/src/c/matrixOperations/cross/scrossa.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/2.3-1/src/c/matrixOperations/cross/scrossa.c b/2.3-1/src/c/matrixOperations/cross/scrossa.c new file mode 100644 index 00000000..414b85a4 --- /dev/null +++ b/2.3-1/src/c/matrixOperations/cross/scrossa.c @@ -0,0 +1,33 @@ +#include <stdio.h> +#include <stdlib.h> +#include <cross.h> + +void scrossa (float* inp1, int size1_r, int size1_c, float* inp2, int size2_r, int size2_c ,float* oup) +{ + int i,j; + + if (size1_c == 3 && size1_r == 1) // Calculating the cross product for a 1X3 Matrix + { + oup[0] = inp1[1]*inp2[2] - inp1[2]*inp2[1]; + oup[1] = inp1[2]*inp2[0] - inp1[0]*inp2[2]; + oup[2] = inp1[0]*inp2[1] - inp1[1]*inp2[0]; + printf("%lf ", oup[0]); + printf("%lf ", oup[1]); + printf("%lf \n", oup[2]); + } + else // Calculating the cross product for a 3XN Matrix + { + for(i = 0; i < size1_r; i++) + { + for(j = 0; j < size1_c; j = j+3) + { + oup[j+(i*size1_r)] = inp1[(j+1)+(i*size1_r)] * inp2[(j+2)+(i*size1_r)] - inp1[(j+2)+(i*size1_r)] * inp2[(j+1)+(i*size1_r)]; + oup[(j+1)+(i*size1_r)] = inp1[(j+2)+(i*size1_r)] * inp2[(j+0)+(i*size1_r)] - inp1[(j+0)+(i*size1_r)] * inp2[(j+2)+(i*size1_r)]; + oup[(j+2)+(i*size1_r)] = inp1[(j+0)+(i*size1_r)] * inp2[(j+1)+(i*size1_r)] - inp1[(j+1)+(i*size1_r)] * inp2[(j+0)+(i*size1_r)]; + + } + } + + } +} + |