Section: Mathematical Operators
y = a .\ b
where a
and b
are n
-dimensional arrays of numerical type. In the
first case, the two arguments are the same size, in which case, the
output y
is the same size as the inputs, and is the element-wise
division of b
by a
. In the second case, either a
or b
is a scalar,
in which case y
is the same size as the larger argument,
and is the division of the scalar with each element of the other argument.
The rules for manipulating types has changed in FreeMat 4.0. See typerules
for more details.
If a
is a scalar, then the output is computed via
On the other hand, if b
is a scalar, then the output is computed via
.\\
operator. The first example
is straightforward:
--> 3 .\ 8 ans = 2.6667
We can also divide complex arguments:
--> a = 3 + 4*i a = 3.0000 + 4.0000i --> b = 5 + 8*i b = 5.0000 + 8.0000i --> c = b .\ a c = 0.5281 - 0.0449i
We can also demonstrate the three forms of the dot-left-divide operator. First the element-wise version:
--> a = [1,2;3,4] a = 1 2 3 4 --> b = [2,3;6,7] b = 2 3 6 7 --> c = a .\ b c = 2.0000 1.5000 2.0000 1.7500
Then the scalar versions
--> c = a .\ 3 c = 3.0000 1.5000 1.0000 0.7500 --> c = 3 .\ a c = 0.3333 0.6667 1.0000 1.3333