LCOV - code coverage report
Current view: top level - cdn - diflgr.f (source / functions) Hit Total Coverage
Test: combined.info Lines: 0 2 0.0 %
Date: 2019-09-08 04:53:50 Functions: 0 1 0.0 %

          Line data    Source code
       1             :       MODULE m_diflgr
       2             :       CONTAINS
       3           0 :       REAL FUNCTION diflgr(x,f)
       4             : c     **********************************************************
       5             : c     differentiate the function f,
       6             : c     given at the points x0,x1,x2,
       7             : c     at the point x1 by lagrange interpolation
       8             : c     e.wimmer
       9             : c     ***********************************************************
      10             : C     .. Array Arguments ..
      11             : 
      12             :       IMPLICIT NONE
      13             :       REAL f(0:2),x(0:2)
      14             : C     ..
      15             :       diflgr = (x(1)-x(2))*f(0)/ ((x(0)-x(1))* (x(0)-x(2))) +
      16             :      +         (2.0e0*x(1)-x(2)-x(0))*f(1)/ ((x(1)-x(0))* (x(1)-x(2))) +
      17           0 :      +         (x(1)-x(0))*f(2)/ ((x(2)-x(0))* (x(2)-x(1)))
      18             : c     print *,'x=',x
      19             : c     print *,'f=',f
      20             : c     print *,'diflgr=',diflgr
      21             :       RETURN
      22             :       END FUNCTION
      23             :       END

Generated by: LCOV version 1.13