### A good answer might be:

Yes. The sign bit of 32-bit integers and of 32-bit floats is set (to one) when the value is negative and clear (to zero) when the value is positive or zero.

# More on Ms. Mantissa

The mantissa represents a number in 24-bit base two positional notation that looks like this:

    1.xxxxxxxxxxxxxxxxxxxxxxx     (x = 0 or 1; there are 23 x's)

Very tricky: The mantissa represents the 23-bit binary fraction part of a 24-bit number that starts with a "1". The 20 place (the one's place) is presumed to contain a 1 and is not present in the mantissa. This trick gives us 24 bits of precision with only 23 bits.

For example, the binary number `1.11110000101101101010001` is represented as `11110000101101101010001`

### QUESTION 12:

If you had a daughter would you name her Mantissa?