ratio(\)
Syntax
X \ Y
Arguments
X and Y is a scalar/pair/vector/matrix. If X or Y is a pair/vector/matrix, the other is a scalar or a pair/vector/matrix of the same size.
Details
Return element-by-element ratio of X to Y. Function
ratio
always returns floating numbers. If both X and
Y are integer/long, ratio
( converts them into floating
numbers and then conduct division. This is different from operator div (/), which does
not convert integer/long to floating numbers. Another difference with
div
is that Y can be negative integers when X is
integer.
Examples
9\2:5;
// output
4.5 : 1.8
11:25\3:4;
// output
3.666667 : 6.25
x=1 2 3;
x \ 2;
// output
[0.5,1,1.5]
2 \ x;
// output
[2,1,0.666667]
y=4 5 6;
x \ y;
// output
[0.25,0.4,0.5]
y \ x;
// output
[4,2.5,2]
m1=1..6$2:3;
m1;
#0 | #1 | #2 |
---|---|---|
1 | 3 | 5 |
2 | 4 | 6 |
m1\2;
#0 | #1 | #2 |
---|---|---|
0.5 | 1.5 | 2.5 |
1 | 2 | 3 |
m2=6..1$2:3;
m2;
#0 | #1 | #2 |
---|---|---|
6 | 4 | 2 |
5 | 3 | 1 |
m1\m2;
#0 | #1 | #2 |
---|---|---|
0.166667 | 0.75 | 2.5 |
0.4 | 1.333333 | 6 |
-7\5;
// output
-1.4
x=-1 2 3;
x\-5;
// output
[0.2,-0.4,-0.6]