Using CONVERGE Column format output file in mathlab

Dear friends,

I have a matrix with 7 column, which are:

  %           x                y               z          volume               u               v               w
  data = [
  5.4290000e-002  1.2000001e-002 -4.9610499e-002  5.1200019e-007 -1.9077557e+000  8.6310053e+000  1.7610728e+000
  6.2290000e-002  4.0000002e-003 -4.9610499e-002  5.1199995e-007 -4.3041107e-001  6.8699613e+000  1.7610728e+000
  6.2290000e-002  1.2000001e-002 -5.7610501e-002  5.1199995e-007 -1.2512736e+000  6.6148076e+000  2.0450566e+000
  5.4290000e-002  1.2000001e-002 -4.1610500e-002  5.1199995e-007 -1.9077557e+000  8.6310053e+000  1.4770888e+000
  6.2290000e-002  4.0000002e-003 -4.1610500e-002  5.1199972e-007 -4.3041107e-001  6.8699613e+000  1.4770888e+000
  5.4290000e-002  1.2000001e-002 -3.3610500e-002  5.1200019e-007 -1.9077557e+000  8.6310053e+000  1.1931050e+000
  6.2290000e-002  4.0000002e-003 -3.3610500e-002  5.1199995e-007 -4.3041107e-001  6.8699613e+000  1.1931050e+000
  5.4290000e-002  1.2000001e-002 -2.5610500e-002  5.1200007e-007 -1.9077557e+000  8.6310053e+000  9.0912110e-001
  6.2290000e-002  4.0000002e-003 -2.5610500e-002  5.1199983e-007 -4.3041107e-001  6.8699613e+000  9.0912110e-001
  5.4290000e-002  1.2000001e-002 -1.7610500e-002  5.1200013e-007 -1.9077557e+000  8.6310053e+000  6.2513727e-001
  6.2290000e-002  4.0000002e-003 -1.7610500e-002  5.1199989e-007 -4.3041107e-001  6.8699613e+000  6.2513727e-001
  5.4290000e-002  1.2000001e-002 -9.6105000e-003  5.1200007e-007 -1.9077557e+000  8.6310053e+000  3.4115338e-001
  5.4290000e-002  4.0000002e-003 -9.6105000e-003  5.1200007e-007 -6.6662008e-001  9.0477009e+000  3.4115338e-001
  5.4290000e-002 -4.0000002e-003 -9.6105000e-003  5.1200007e-007  6.6662008e-001  9.0477009e+000  3.4115338e-001
  6.2290000e-002 -1.2000001e-002 -9.6105000e-003  5.1199983e-007  1.2512736e+000  6.6148076e+000  3.4115338e-001
  5.4290000e-002 -4.0000002e-003 -1.7610500e-002  5.1200013e-007  6.6662008e-001  9.0477009e+000  6.2513727e-001
  6.2290000e-002 -1.2000001e-002 -1.7610500e-002  5.1199989e-007  1.2512736e+000  6.6148076e+000  6.2513727e-001
  5.4290000e-002 -4.0000002e-003 -2.5610500e-002  5.1200007e-007  6.6662008e-001  9.0477009e+000  9.0912110e-001
  ];

I am trying to show last three columns (UVW) in XYZ which are first three columns,

[Walter Roberson]

? Do you mean something other than

last3 = data(:, end-2:end);

I suspect that the last digit of the last w entry is missing, as you only have two 0's after the exponent, whereas all of the other values have 3 digits after the exponent.

[Alireza Kakoee]

last3 = data(:, end-2:end);

what do you mean?

how can insert a text file into matrix in mathalb?

[Walter Roberson]

Text files can be read in as character vectors, which can be stored into a character matrix by regular indexing.

A lot of the time it makes more sense to use readtable()

Answer 1

[Alireza Kakoee]

Hi, thank you for you answer, i am trying to shows contours of velocity (3 dimentional velocity) in domain of XYZ. last digits of last nuber is 1

[Walter Roberson]

See quiver3()