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How will we integrate a non-linear function, f, taken as an inline function?

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How will we integrate a non-linear function, f, taken as an inline function?

(a) int([f])

(b) quad(‘f’)

(c) quad([f])

(d) quad(‘[f]’)

This question was addressed to me by my college director while I was bunking the class.

This key question is from Integration topic in portion Beyond the Basics of MATLAB

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Correct answer is (d) quad(‘[f]’)

The explanation: The function, f, will be taken as a string input. Hence, we cannot use the int command since it takes symbolic arguments while the class of our function is inline. Since the function is non-linear, we need to introduce it as a matrix to our quad() command. It takes string arguments so the correct answer should be quad(‘[]’).

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