Fortran 90 array assignments
Rank-2 arrays, shape (5, 10):
REAL A(5, 10), B(5, 10), C(5, 10)
Array expressions involve conforming arrays:
A + B, B * C, A + (B * C)
Arrays conform if they have same shape.
B * C, for example, stands for
B(1,1) * C(1,1) . . . B(1,10) * C(1,10)
· · ·
B(5,1) * C(5,1) . . . B(5,10) * C(5,10)