# Condicionales

En Soulver, un condicional se expresa en una sola línea:

```
earnings = $45k                                 | $45,000.00

if earnings > $30k then tax = 20% else tax = 5% | 20%

My tax paid: earnings × tax                     | $9,000.00
```

**Declarar una variable usando un condicional**

```
income = $35k
expenses = $21.5k

profitable = true if income > expenses     | true
insolvent = false unless expenses > income | false
```

**Usando "and" y "or" en condicionales**

```
BMI = 24
Underweight = BMI < 18.5                  | false
Healthy Weight = BMI >= 18.5 and BMI < 25 | true
Overweight = BMI >= 25 and BMI < 30       | false
Obese = BMI >= 30                         | false
```

{% hint style="info" %}
&& and || también son compatibles
{% endhint %}

#### Operadores de comparación y booleanos

Soulver admite los operadores de comparación estándar de estilo ["C" style](https://en.wikipedia.org/wiki/C_\(programming_language\)).

Se devuelve un valor booleano (`true` o `false`).

| Nombre            | Operador |
| ----------------- | -------- |
| Igual a           | ==       |
| No igual a        | !=       |
| Mayor que         | >        |
| Menor que         | <        |
| Mayor o igual que | >=       |
| Menor o igual que | <=       |

Puede asignar un valor booleano a una variable directamente

```
cost = $500                                 
discount = true                        
if discount then cost = cost - 10%
cost | $450.00
```

También puede usar operadores de comparación fuera de las sentencias if

```
20km == 20,000 m   | true
11:30 am < 9:30 am | false
```


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