Query: lumped_mass
OS: debian
Section: 3rheolef
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
lumped_mass(3rheolef) rheolef-6.1 lumped_mass(3rheolef)NAMElumped_mass -- lumped L2 scalar productSYNOPSISform(const space& V, const space& V, "lumped_mass"); form(const space& M, const space& V, "lumped_mass"); form (const space& V, const space& V, "lumped_mass", const domain& gamma); form_diag(const space& V, "mass");EXAMPLEThe use of lumped mass form write: form m(V, "lumped_mass"); or (see also mass(3)): form_diag md(V, "mass"); The lumped procedure sums all extra-diagonal terms on the diagonal: let us denote M the original mass matrix, then, the lumped mass matrix is the diagonal matrix defined by: n ---- M1(i,i) = / M(i,j) ---- j=1SEE ALSOmass(3) rheolef-6.1 rheolef-6.1 lumped_mass(3rheolef)
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