Warning: Error updating FunctionLine

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Anthony Knighton
Anthony Knighton 2021-2-19
评论： Walter Roberson 2021-2-19
I have written 3 simple lines of code to plot a function. Here is my code:
n=2;
omega=@(r) log(factorial(r+n-1))-log(factorial(r))-log(factorial(n-1));
fplot(omega,[0 150],'b')
When I plot it, it gives me the following error message: "Warning: Error updating FunctionLine".
In case this information is useful, the function is the natural log of the multiplicity of an Einstein Solid. The multiplicity is given by . Where n is the number of oscillators and r is quanta of energy. When we take natural log, we get . I checked in the command window, and the largest factorial that MATLAB can calculate is the factorial of 170, but it never has to calculate the factorial of a number greater than 170 while .

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回答（1 个）

Walter Roberson
Walter Roberson 2021-2-19
factorial is only for integers but fplot uses nonintegers

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