*DECK DXQMU SUBROUTINE DXQMU (NU1, NU2, MU1, MU2, THETA, X, SX, ID, PQA, IPQA, 1 IERROR) C***BEGIN PROLOGUE DXQMU C***SUBSIDIARY C***PURPOSE To compute the values of Legendre functions for DXLEGF. C Method: forward mu-wise recurrence for Q(MU,NU,X) for fixed C nu to obtain Q(MU1,NU,X), Q(MU1+1,NU,X), ..., Q(MU2,NU,X). C***LIBRARY SLATEC C***CATEGORY C3A2, C9 C***TYPE DOUBLE PRECISION (XQMU-S, DXQMU-D) C***KEYWORDS LEGENDRE FUNCTIONS C***AUTHOR Smith, John M., (NBS and George Mason University) C***ROUTINES CALLED DXADD, DXADJ, DXPQNU C***REVISION HISTORY (YYMMDD) C 820728 DATE WRITTEN C 890126 Revised to meet SLATEC CML recommendations. (DWL and JMS) C 901019 Revisions to prologue. (DWL and WRB) C 901106 Corrected order of sections in prologue and added TYPE C section. (WRB) C 920127 Revised PURPOSE section of prologue. (DWL) C***END PROLOGUE DXQMU