How to convert complex numbers into cartesian form?

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Julian Mata
Julian Mata 2022-3-3
编辑： AndresVar 2022-3-3
I need to convert this into cartesian form.
z4=real(5*exp(1i*2*pi*15*ty+0.9*pi));

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Walter Roberson
Walter Roberson 2022-3-3
It is a real value. x will be that value and y will be 0.
If you let tyr be the real part of ty and tyi be the imaginary part then
5*exp(-(3*pi*(100*tyi - 3))/10)*cos(30*pi*tyr)

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