Programming_Assignment_16.py

1. **Stuttering Function**:

```python
def stutter(word):
    if len(word) < 2:
        return word
    
    stuttered = word[:2] + "... " + word[:2] + "... " + word + "?"
    return stuttered
```

Explanation:
- The function first checks if the input word has at least 2 characters. If not, it returns the original word.
- Otherwise, it takes the first 2 characters of the word, repeats them twice with an ellipsis and space after each, and then adds the full word with a question mark at the end.

2. **Radians to Degrees Conversion**:

```python
import math

def radians_to_degrees(radians):
    degrees = radians * (180 / math.pi)
    return round(degrees, 1)
```

Explanation:
- The function uses the formula `degrees = radians * (180 / π)` to convert the input radians to degrees.
- It then rounds the result to one decimal place using the `round()` function.

3. **Curzon Number Checker**:

```python
def is_curzon(num):
    numerator = 2 ** num + 1
    denominator = 2 * num + 1
    return numerator % denominator == 0
```

Explanation:
- The function calculates the numerator and denominator as per the problem statement.
- It then checks if the numerator is divisible by the denominator using the modulo operator `%`. If the result is 0, the number is a Curzon number, so the function returns `True`. Otherwise, it returns `False`.

4. **Area of a Hexagon**:

```python
import math

def area_of_hexagon(side_length):
    area = (3 * math.sqrt(3) * side_length ** 2) / 2
    return round(area, 1)
```

Explanation:
- The function uses the formula `Area = (3 * √3 * s^2) / 2`, where `s` is the side length of the hexagon.
- It calculates the area and rounds the result to one decimal place using the `round()` function.

5. **Binary Representation**:

```python
def binary(decimal):
    binary_str = bin(decimal)[2:]
    return binary_str
```

Explanation:
- The function uses the built-in `bin()` function to convert the input decimal number to its binary representation.
- The `[2:]` slice removes the leading `"0b"` from the binary string, leaving only the binary digits.