# Check if a Number is Positive, Negative or Zero

In this example, a number entered by the user is checked whether it’s a positive number or a negative number or zero.

## Example: Check Positive, Negative or Zero

``````# In this program, we input a number check if the number is positive or negative or zero
num = as.double(readline(prompt="Enter a number: "))
if(num > 0) {
print("Positive number")
} else {
if(num == 0) {
print("Zero")
} else {
print("Negative number")
}
}
``````

Output 1

```Enter a number: -9.6
[1] "Negative number"
```

Output 2

```Enter a number: 2
[1] "Positive number"
```

A number is positive if it is greater than zero.

We check this in the expression of `if`. If it is `FALSE`, the number will either be zero or negative.

This is also tested in subsequent expression.

Python Examples for Beginners: Python Code to Check if a Number is Positive, Negative or Zero

## R Examples for Beginners – Check if a Number is Positive, Negative or Zero

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