file	fishpack/hwscrt.f
for	solves the standard Helmholtz 5-point approximation in Cartesian coordinates using a centered finite difference grid

file	fishpack/hwsplr.f
for	solves a Helmholtz 5-point approximation in polar coordinates using a centered finite difference grid

file	fishpack/hwscyl.f
for	solves a modified Helmholtz 5-point approximation in cylindrical coordinates using a centered finite difference grid

file	fishpack/hwsssp.f
for	solves a Helmholtz 5-point approximation in spherical coordinates and on the surface of the unit sphere using a centered finite difference grid

file	fishpack/hwscsp.f
for	solves modified Helmholtz 5-point approximation in spherical coordinate assuming axis symmetry and using a centered finite difference grid

file	fishpack/hstcrt.f
for	solves the standard Helmholtz 5-point approximation in Cartesian coordinates using a staggered finite difference grid

file	fishpack/hstplr.f
for	solves a Helmholtz 5-point approximation in polar coordinates using a staggered finite difference grid

file	fishpack/hstcyl.f
for	solves a modified Helmholtz 5-point approximation in cylindrical coordinates using a staggered finite difference grid

file	fishpack/hstssp.f
for	solves a Helmholtz 5-point approximation in spherical coordinates and on the surface of the unit sphere using a staggered finite difference grid

file	fishpack/hstcsp.f
for	solves a modified Helmholtz 5-point approximation in spherical coordinates assuming axis symmetry

file	fishpack/hw3crt.f
for	solves the standard Helmholtz 7-point approximation in Cartesian coordinates using a centered finite difference grid

file	fishpack/sepx4.f
for	discretizes and solves 2nd and optionally 4th order approximations to separable elliptic PDEs with constant coefficients in one direction

file	fishpack/sepeli.f
for	discretizes and solves 2nd and optionally 4th order approximations on a uniform grid to a separable elliptic PDE on a rectangle

file	fishpack/genbun.f
for	solves the linear system of equations resulting from an approximation to 2-dimensional elliptic PDEs with constant coefficients in one direction

file	fishpack/blktri.f
for	solves block tridiagonal linear systems arising from approximations to separable 2-dimensional elliptic PDEs

file	fishpack/poistg.f
for	solves a block tridiagonal linear system arising from staggered grid approximations to 2-dimensional elliptic PDEs with constant coefficients

file	fishpack/pois3d.f
for	solves a block tridiagonal linear system of equations arising from approximations to 3-dimensional elliptic PDEs in a box

file	fishpack/cmgnbn.f
for	solves a complex block tridiagonal linear system arising from approximations to separable complex 2-dimensional elliptic PDEs

file	fishpack/cblktr.f
for	solves a complex block tridiagonal linear system arising from approximations to separable complex 2-dimensional elliptic PDEs

