Indentation by steps of 3 spaces is common in old Fortran 77 code. This is LAPACK for example. Scroll down to about line 400 to see actual code, not comments.

Indentation by steps of 3 spaces is common in old Fortran 77 code. This is LAPACK for example. Scroll down to about line 400 to see actual code, not comments. https://github.com/Reference-LAPACK/lapack/blob/master/SRC/cbbcsd.f https://github.com/Reference-LAPACK/lapack/blob/master/SRC/c...