Can bc handle complex math?

Yes, bc can handle complex mathematical operations, including functions like square roots, exponentiation, and trigonometric functions. However, it does not support complex numbers directly. Here are some examples of complex math operations you can perform with bc:

Exponentiation: You can use the ^ operator for exponentiation:
```
echo "2^3" | bc  # 2 raised to the power of 3
```
Square Root: To calculate the square root, you can use the sqrt function:
```
echo "scale=2; sqrt(16)" | bc  # Square root of 16
```
Trigonometric Functions: bc supports trigonometric functions, but you need to set the scale and convert degrees to radians:
```
echo "scale=4; s(45 * 3.14159 / 180)" | bc -l  # Sine of 45 degrees
```
Here, -l loads the math library, which provides access to trigonometric functions.
Logarithms: You can calculate logarithms using the l function:
```
echo "scale=4; l(10)" | bc -l  # Natural logarithm of 10
```
Combination of Operations: You can combine multiple operations in a single expression:
```
echo "scale=4; (2^3 + sqrt(16)) / (5 - 3)" | bc
```

These examples illustrate that bc is quite powerful for performing a variety of mathematical calculations, including more complex operations. Just remember to use the -l option when you need access to the math library functions.