zerat2000
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How can I express the general wave formula, y=Acos(wt-kx), by the complex ft and the exponential ft?
Is it right to use Euler's Identity?
Is it right to use Euler's Identity?
Wave Formula by complex analysis
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You can use Euler if you want, but can just write y=exp(iwt-ikx) .
It's real part is the cos.
It's real part is the cos.
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