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来自「这是Yousef Saad编写的矩阵运算的Fortran软件包（A basic 」· 代码 · 共 20 行

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		             Current contents:
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Some of the files that were originally in this directory 
have been moved to the INOUT module, or were obsolte and removed.

* psgrd.f contains subroutine "psgrid" which plots a symmetric graph.

* texplt1.f contains subroutine "texplt" allows several matrices
  in the same picture by calling texplt several times and exploiting job and
  different shifts.

* texgrid1.f contains subroutine "texgrd" which generates tex commands
  for plotting a symmetric graph associated with a mesh. Allows  
  several grids in the same picture by calling texgrd several times and 
  exploiting job and different shifts.