Provided by: librheolef-dev_5.93-2_amd64

**NAME**

inv_mass-- invert of L2 scalar product

**SYNOPSIS**

form(const space& V, const space& V, "inv_mass");

**DESCRIPTION**

Assembly the invert of the matrix associated to the L2 scalar product of the finite element space V: / | m(u,v) = | u v dx | / Omega The V space may be either aP0orP1ddiscontinuous finite element spaces see form(3).

**EXAMPLE**

The following piece of code build the invert of the mass matrix associated to theP1dapproximation: geo omega_h ("square"); space Vh (omega_h , "P1d"); form im (Vh, Vh, "inv_mass");

**SEE** **ALSO**

form(3)