# Introduction¶

## ELI supports vector form¶

ELI supports

```    12 + 7
19
1 2 3 + 4 5 6
5 7 9
```

## ELI executes from right to left¶

The execution of ELI code starts from the most right side. Every primitive has the equivalent priority. No need to remember the order of primitives.

```    2 * 3 + 5
16
2 + 3 - 1
4
3 - 1 + 2
0
```

## ELI computes complex numbers¶

A complex number can be represented as `2j3`, where the first number is the real part and the second number is the imagine part. The complex number is equivalent to `2 + 3i`.

```    2j3 + 1
3j3
```

```<TBA>
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