Simpson method, ezplot (with strings)

Question

Borna 2024-12-1

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https://ww2.mathworks.cn/matlabcentral/answers/2170028-simpson-method-ezplot-with-strings

回答： Walter Roberson 2024-12-2

Hello,

I need to calculate the mass of a substance entering a reactor using Simpson's method and graphically display the dependence of mass on time. The mass is expressed via an integral you can see at the end. M - mass [kg], Q - flow [m^3/L], c - concentration [mg/L]. The measurements are shown in a table: t/min=[0 10 20 30 40 45 50 55], Q/m^3 min^-1=[3.6 3.9 4.5 4.8 5.0 4.9 4.9 4.3], c/mg m^-3=[15 20 40 55 56 48 42 30]. Also function has to be defined in function file, can't be inline.

I can't get anything from my code, even when I just put two string in ezplot, I get an error, so I need any help I can get.

Thank you!!

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John D'Errico 2024-12-1

@Borna

The mistake you made is in your code. We don't see any code. If you want help, then make it possible to get help, and show your code.

Walter Roberson 2024-12-2

ezplot does not accept two strings in any of its forms. It accepts one string at most. ezplot and ezplot (symbolic) do not even accept any Name/Value pairs.

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