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411 समाचार
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411 REFERENCE · Wikibooks

Linear Algebra and the C Language/a0dg

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__NOTOC__ Install and compile this file in your working directory. /* ------------------------------------ */ /* Save as: c00h.c */ /* ------------------------------------ */ #include "v_a.h" /* ------------------------------------ */ void fun(int r) { double **A = rsymmetric_mR( i_mR(r,r),999); double **EVector = eigs_V_mR(A, i_mR(r,r)); clrscrn(); printf(" A:"); p_mR(A,S5,P0,C6); printf(" EVector:"); p_mR(EVector,S5,P6,C6); printf(" det_R(EVector) = %+.0f" " (The vectors form an orthonormal basis.)\n",det_R(EVector)); f_mR(A); f_mR(EVector); } /* ------------------------------------ */ int main(void) { time_t t; srand(time(&t)); do { fun(rp_I(R4)+R2); } while(stop_w()); return 0; } /* ------------------------------------ */ /* ------------------------------------ */ Screen output example: A: +985 +314 -890 +314 -290 +578 -890 +578 -944 EVector: +0.337889 +0.934880 +0.108766 -0.442685 +0.055879 +0.894934 +0.830578 -0.350538 +0.432738 det_R(EVector) = +1 (The vectors form an orthonormal basis.) Press return to continue Press X return to stop