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What is the best syntax to use for dVph/dλ?

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KHAN
KHAN 2019-10-18
关闭： MATLAB Answer Bot 2021-8-20
Hi All,
I have a question regarding the (dVph/dλ). Is the diff(Vph)/diff(λ) ok to get the gradient of the velocity with respect to wavelength? My idea is to find the gradient at each point in my curve. Please help me with this issue. I am waiting for your reply. Thanks.
With my best regards,
Yours,
Mohammed

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回答（1 个）

Walter Roberson
Walter Roberson 2019-10-18
No, if you are working numerically use gradient()
If you are working symbolically then diff(Vph(lambda), lambda)

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