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411 समाचार
Public archive edition · Attributed source reporting with original dates · AI drafts are excluded

411 REFERENCE · Wikibooks

Linear Algebra and the C Language/a0av

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 : c00i.c */ /* ------------------------------------ */ #include "v_a.h" /* ------------------------------------ */ void fun(int r) { double **u = r_mR(i_mR(r,C1),9.); double **v = r_mR(i_mR(r,C1),9.); double **kv = i_mR(r,C1); double k = r_I(9); clrscrn(); printf(" u :"); p_mR(u,S3,P0,C6); printf(" v :"); p_mR(v,S3,P0,C6); printf(" k*v :"); p_mR(smul_mR(k,v,kv),S3,P0,C6); stop(); clrscrn(); printf(" k<u,v> = <u,kv> \n\n"); printf(" k<u,v> = %.0f \n", k*dot_R(u,v)); printf(" <u,kv> = %.0f \n\n", dot_R(u,kv)); f_mR(u); f_mR(v); f_mR(kv); } /* ------------------------------------ */ int main(void) { time_t t; srand(time(&t)); do { fun(rp_I(R3)+R2); } while(stop_w()); return 0; } /* ------------------------------------ */ /* ------------------------------------ */ Screen output example: u : +6 +2 +3 +9 -2 v : -4 -7 +2 +4 -5 k*v : +12 +21 -6 -12 +15 Press return to continue. k<u,v> = <u,kv> k<u,v> = -42 <u,kv> = -42 Press return to continue Press X return to stop