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411 समाचार
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411 REFERENCE · Wikibooks

Linear Algebra and the C Language/a0di

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" /* ------------------------------------ */ void fun(int r) { double **A = rsymmetric_mR( i_mR(r,r),999.); double **EValue = eigs_mR(A, i_mR(r,C1)); clrscrn(); printf(" Copy/Paste into the octave windows \n\n"); p_Octave_mR(A,"a",P0); printf(" EValue = eigs (a,%d) \n\n",r); printf(" EValue:"); p_mR(EValue,S13,P6,C1); f_mR(A); f_mR(EValue); } /* ------------------------------------ */ int main(void) { time_t t; srand(time(&t)); do { fun(rp_I(R4)+R2); } while(stop_w()); return 0; } /* ------------------------------------ */ /* ------------------------------------ */ Screen output example: Copy/Paste into the octave windows a=[ +653,+226,-348,+195,+643,-599; +226,-376,+961,+694,-422,+697; -348,+961,-227,+996,-408,+706; +195,+694,+996,+764,-801,+894; +643,-422,-408,-801,+872,+131; -599,+697,+706,+894,+131,+756] EValue = eigs (a,6) EValue: +3149.197249 -1465.569289 +1120.988394 +870.255854 -735.776325 -497.095883 Press return to continue Press X return to stop