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legendre_rule_test:
  MATLAB version
  Test legendre_rule.
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LEGENDRE_RULE
  MATLAB version

  Compute a Gauss-Legendre rule for approximating
    Integral ( A <= x <= B ) f(x) dx
  of order ORDER.

  The user specifies ORDER, A, B, and FILENAME.

  ORDER is the number of points;
  A is the left endpoint;
  B is the right endpoint;
  FILENAME is used to generate 3 files:
    filename_w.txt - the weight file
    filename_x.txt - the abscissa file.
    filename_r.txt - the region file.

  ORDER = 4
  A = -1.000000
  B = 1.000000
  FILENAME = "leg_o4".

  Creating quadrature files.

  "Root" file name is   "leg_o4".

  Weight file will be   "leg_o4_w.txt".
  Abscissa file will be "leg_o4_x.txt".
  Region file will be   "leg_o4_r.txt".

LEGENDRE_RULE:
  Normal end of execution.

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legendre_rule_test:
  Normal end of execution.

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