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411 समाचार
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411 REFERENCE · Wikibooks

Linear Algebra and the C Language/a0hm

Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.

__NOTOC__ Install and compile this file in your working directory. /* ------------------------------------ */ /* Save as : c00a.c */ /* ------------------------------------ */ #include "v_a.h" /* ------------------------------------ */ /* ------------------------------------ */ double **X_rToeplitz_mR( double **U, double **V, double **A ) { int cn = C2; int r = R2; int rn = R2; int c = C2; isquare_mR(A,"rToeplitz_mR;","(A)"); c_r_mR(U,R1,A,R1); c_c_mR(V,C1,A,C1); for(cn = C2; r <A[R_SIZE][C0]; cn++,r++) c_rU_rA_cn_mR(U,R1,A,r,cn); for(rn = R2; c <A[C_SIZE][C0]; rn++,c++) c_cV_cA_rn_mR(V,C1,A,c,rn); return(A); } /* ------------------------------------ */ /* ------------------------------------ */ void fun(int rc) { double **U = r_mR(i_mR(R1,rc),9); double **V = r_mR(i_mR(rc,C1),9); double **A = i_mR(rc,rc); c_s_mR(U[R1][C1], V,R1,C1); clrscrn(); rToeplitz_mR(U,V,A); printf(" A: Toeplitz matrix"); p_mR(A, S4,P0,C10); f_mR(U); f_mR(V); f_mR(A); } /* ------------------------------------ */ int main(void) { time_t t; srand(time(&t)); do fun(R6); while(stop_w()); return 0; } /* ------------------------------------ */ /* ------------------------------------ */ Screen output example: A: Toeplitz matrix +7 +7 -9 +8 -9 -6 -5 +7 +7 -9 +8 -9 -9 -5 +7 +7 -9 +8 +6 -9 -5 +7 +7 -9 -6 +6 -9 -5 +7 +7 -4 -6 +6 -9 -5 +7 Press return to continue Press X return to stop