finding lower and upper limit of a function

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soloby
soloby 2015-6-13
评论： Dyuman Joshi 2024-1-10
x = -10:0.1:10;
f1 = trapmf(x,[-2 0 0 2]);
if i plot(x,f1), this will give me a triangular wave.
I need to seperate the f1 values into two sections, one left of the peak and one right of the peak.
What's the best way of doing this? an If statement?

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回答（2 个）

Jan
Jan 2015-6-13
[maxValue, maxIndex] = max(f1);
First part: 1:maxIndex , second part: maxIndex+1:length(x)
Gaurab
Gaurab 2024-1-10
Write a MATLAB function that takes user input for lower and upper limits, finds prime numbers within that range (excluding 1), and then constructs a matrix close to the number of prime numbers found. The matrix should be filled with prime numbers in a row-wise manner without using any inbuilt functions like reshape or isprime. If the number of prime numbers is not a perfect square, fill the remaining elements with zeros. Provide the code for this function."
  2 个评论
Walter Roberson
Walter Roberson 2024-1-10
I do not see how following these instructions will solve the original problem of finding the upper and lower bound of a function.
Dyuman Joshi
Dyuman Joshi 2024-1-10
This isn't an answer to the question, so it doesn't belong here as an answer. If you have a question, ask a question instead posting it where it doesn't belong.
Since this appears quite plainly to be a homework assignment, read this.
https://www.mathworks.com/matlabcentral/answers/8626-how-do-i-get-help-on-homework-questions-on-matlab-answers
You're free to post a new question. This misplaced question-as-answer will be removed in time.

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