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    • Thread Starter

    So I understand how to represent a negative number in binary through twos compliment and the other method. I understand how to find the exponent however I can't understand how to find the mantissa, can anyine explain pls!.
    Thank you on advance if I don't have time to see reply. 😊
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    the first bit is a sign bit (+/-) negatives always start with 1. The exponent is used to give the mantissa an order of magnitude.

    E.g. 10100 001 means 1.0100 *2^1 = 10.100 aka 2 + 0 + 0.5 = 2.5 but don't forget it started with a 1 in its normalised form so it's -2.5
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