Fortran program for matrix transpose

If you want to make an arbitrary change in the dimensions of an array use the "reshape" intrinsic function. Whether it will place the elements where you want them is another question.

Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Fortran transpose of matrix doesn't work on non-2D arrays Ask Question. Asked 10 years, 1 month ago. Active 10 years, 1 month ago. Viewed 7k times. Thank you. Samuel Tan. Samuel Tan Samuel Tan 1, 4 4 gold badges 22 22 silver badges 34 34 bronze badges. When your array indices start from 1, you can just write the upper bound at declaration time, e.

A 3,4,5 , because indexing is by default from 1 in Fortran. It might be easier to spot mistakes like this. Also, when you slice through the whole dimension, you can just do A :,1,: instead of A ,1, Add a comment.

Active Oldest Votes. I am wondering how you did not catch on this since compilers give a clear error message: gfortran 4. From Fortran Standard draft: Construct an array of an arbitrary shape. REAL A 3,3!! NOTE: Column major!!! A contains information on its size and shape The function can be very general The function can be written in such a way that it can manipulate any size and shape of matrices.

An array of a single value is not the same as a scalar. Two dimensional array And so on Use the program you developed Exercise 7. Unlike most of the exercises in these worksheets, REAL programs tend to be rather large. In large programs, the underlying logic can often be difficult to follow.

It helps, therefore, both in the devising of a program and later in its maintenance, to have a plan of what you intend the program to do. The flowchart is shown on the next page. The logic of the program, as a whole, is clear. Details like what will happen in the subroutines is glossed over at this stage.