Matrix Elements VB-800 Manuel d'utilisateur Page 71

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A2.5 Ox exported mathematics functions 63
Description
Solves AX = B, with A = LU a square matrix. Normally, this will be preceded
by a call to ILUPdec. That function returns LU stored in one matrix, which can
then be used for both mL and mU.
MatAcf
MATRIX MatAcf(MATRIX mAcf, MATRIX mX, int cT, int cX, int mxLag);
mAcf[mxLag+1] [cX] out: correlation coefficients (0. if failed)
mX[cT][cX] in: variable of which to compute correlogram
cT in: number of observations
mxLag in: required no of correlation coeffs
Return value
Returns mAcf if successful, NULL if not enough observations.
MatAdd
MATRIX MatAdd(MATRIX mA, int cM, int cN, MATRIX mB, double dFac,
MATRIX mAplusB);
mA[cM][cN] in: matrix A
mB[cM][cN] in: matrix B
dFac in: scalar c
mAplusB[cM][cN] out: A + cB
Return value
returns mAplusB =A + cB.
MatAB, MatABt, MatAtB, MatBSBt, MatBtSB, MatBBt, MatBtB,
MatBtBVec
MATRIX MatAB(MATRIX mA, int cA, int cC, MATRIX mB,int cB,mat mAB);
mA[cA][cC] in: matrix A
mB[cC][cB] in: matrix B
mAB[cA][cB] out: AB
MATRIX MatABt(MATRIX mA, int cA, int cC, MATRIX mB,
int cB, mat mABt);
mA[cA][cC] in: matrix A
mB[cB][cC] in: matrix B
mABt[cA][cB] out: AB
0
MATRIX MatAtB(MATRIX mA, int cA, int cC, MATRIX mB,
int cB, mat mAtB);
mA[cA][cC] in: matrix A
mB[cA][cB] in: matrix B
mAtB[cC][cB] out: A
0
B
MATRIX MatBBt(MATRIX mB, int cB, int cS, MATRIX mBBt);
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