If you have a 1-D vector, it gives the indexes directly. If you have a 2-D matrix, it gives rows and columns,
[rows, columns] = find(yourArray = someValue);
I don't know what you mean by the element - is it the linear index, the row(s) and column(s), or the array element itself? If you're testing a range instead of equality, you can use the linear index instead of the rows and columns to get the values:
m = magic(5);
linearIndexes = find(m>=18)
result = m(linearIndexes)
