Topic: `APLX Help` : `Help on APL language` : `APL Primitives` : `< Less than`
[ Previous | Next | Contents | Index | APL Home ] # `<` Less than

Compares each element in the left-hand argument with the corresponding element in the right-hand argument. If an element in the left-hand argument is less than the corresponding right-hand element, the result of that comparison is 1. Otherwise it is 0. (This operation is affected by `⎕CT,` the comparison tolerance)

```             12 < 1
0
2 < 12
1
12 < 12
0
11 7 2 5 < 11 3 2 6     (Compares each element in a vector with
0 0 0 1                        the corresponding element in a vector of
equal length)
```
```             ¯3 < ¯4                 (Compares negative numbers. The number
0                              nearer 0 is considered the greater.)
```
```             8 < 2+2+2+2             (The right argument is evaluated
0                              before the comparison is made)
```
```             TABLE ← 2 3 ⍴ 1 2 3 4 5 6
MABLE ← 2 3 ⍴ 3 3 3 5 5 5
TABLE < MABLE           (Compares each element in a matrix
1 1 0                          with the corresponding element in
1 0 0                          a matrix of equal size and dimensions)
3<TABLE
0 0 0
1 1 1
3 < TABLE MABLE         (Compares 3 with the elements of the
0 0 0  0 0 0                  nested vector)
1 1 1  1 1 1
```

Topic: `APLX Help` : `Help on APL language` : `APL Primitives` : `< Less than`
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