I need help on a formula for this simple program.

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  1. #1
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    I need help on a formula for this simple program.

    I need help on a formula for this simple program.

    I/P: the original price of an item (float or double) and the % off (discount)
    O/P: sticker price (price you will pay before taxes)

    Basically, this program needs to calculate the price of an item after discount.

    I can do this on a calculator, but it's hard for me to figure out how to write the formula for this program.

    I also need help on showing the $ on the user screen.

    Thanks!

  2. #2
    Guest Sebastiani's Avatar
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    price = cost - (cost * discount);
    Code:
    #include <cmath>
    #include <complex>
    bool euler_flip(bool value)
    {
        return std::pow
        (
            std::complex<float>(std::exp(1.0)), 
            std::complex<float>(0, 1) 
            * std::complex<float>(std::atan(1.0)
            *(1 << (value + 2)))
        ).real() < 0;
    }

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