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SM4: Sherman Morrison, mix between SM3 + SM2 Leave zero denominators for later (SM3), and when none are left then split (SM2)
18 lines
810 B
C++
18 lines
810 B
C++
// Naïve Sherman Morrison
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void SM1(double *Slater_inv, unsigned int Dim, unsigned int N_updates,
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double *Updates, unsigned int *Updates_index);
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// Sherman Morrison, with J. Slagel splitting
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// http://hdl.handle.net/10919/52966
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void SM2(double *Slater_inv, unsigned int Dim, unsigned int N_updates,
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double *Updates, unsigned int *Updates_index);
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// Sherman Morrison, leaving zero denominators for later
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void SM3(double *Slater_inv, unsigned int Dim, unsigned int N_updates,
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double *Updates, unsigned int *Updates_index);
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// Sherman Morrison (SM3+SM2), leaving zero denominators for later (SM3), and
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// when none are left falling back on Splitting (SM2)
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void SM4(double *Slater_inv, unsigned int Dim, unsigned int N_updates,
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double *Updates, unsigned int *Updates_index);
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