PRODUCT— Product of array elements
Multiplies the elements of ARRAY along dimension DIM if
the corresponding element in MASK is
Fortran 90 and later
|ARRAY||Shall be an array of type |
|DIM||(Optional) shall be a scalar of type
|MASK||(Optional) shall be of type |
The result is of the same type as ARRAY.
If DIM is absent, a scalar with the product of all elements in ARRAY is returned. Otherwise, an array of rank n-1, where n equals the rank of ARRAY, and a shape similar to that of ARRAY with dimension DIM dropped is returned.
PROGRAM test_product INTEGER :: x(5) = (/ 1, 2, 3, 4 ,5 /) print *, PRODUCT(x) ! all elements, product = 120 print *, PRODUCT(x, MASK=MOD(x, 2)==1) ! odd elements, product = 15 END PROGRAM