# Comparison

Compare values and produce boolean results (0 or 1).

## Equality

```forth
3 3 =    ( 1 - equal )
3 4 =    ( 0 - not equal )
3 4 !=   ( 1 - not equal )
3 4 <>   ( 1 - not equal, alternative )
```

## Ordering

```forth
2 3 lt   ( 1 - less than )
3 2 gt   ( 1 - greater than )
3 3 <=   ( 1 - less or equal )
3 3 >=   ( 1 - greater or equal )
```

## With Conditionals

```forth
step 4 lt { "kick" s . } ?  ( kick on first 4 steps )

beat 8 >= { 0.5 gain } ?    ( quieter after beat 8 )
```

## Words

| Word | Stack | Description |
|------|-------|-------------|
| `=` | (a b -- bool) | Equal |
| `!=` | (a b -- bool) | Not equal |
| `<>` | (a b -- bool) | Not equal (alias) |
| `lt` | (a b -- bool) | Less than |
| `gt` | (a b -- bool) | Greater than |
| `<=` | (a b -- bool) | Less or equal |
| `>=` | (a b -- bool) | Greater or equal |