IMSL routines used in PS

There are a number of IMSL routines used in the Fortran parts of the PS program. We cannot continue to use these routines since IMSL is not open source. If we want to continue to use the Fortran routines then we will need to find a way to replace these routines.

Fortran routine name	IMSL routine used	Description
fisherest	LSARG	Solves a real general system of linear equations with iterative refinement
invttail	TIN	evaluates the inverse of the Student's t cumulative distribution function
ldeltasi	TIN	evaluates the inverse of the Student's t cumulative distribution function
lpower	TIN	evaluates the inverse of the Student's t cumulative distribution function
lsamples	ZREAL	Finds the real zeros of a real function using Muller's method
mhor	ZBREN	Finds a zero of a real function that changes sign in a given interval
mhpower	ANORIN	evaluates the inverse of the standard normal (Gaussian) cumulative distribution function
mhpower	ANORDF	evaluates the standard normal (Gaussian) cumulative distribution function
mhsize	ZBREN	Finds a zero of a real function that changes sign in a given interval
phi	DERF	evaluates the error function
phi	DERFC	evaluates the complementary error function
survrelh	?
tcrvalue	?
tcumfcn	?
tdeltasi	TIN	evaluates the inverse of the Student's t cumulative distribution function
tpower	TIN	evaluates the inverse of the Student's t cumulative distribution function
tsamples	?
tsize	TIN	evaluates the inverse of the Student's t cumulative distribution function