sums the values of those elements of “x” that are lower than 26. in matlab

To sum the values of elements in a vector x that are lower than 26, we can use a combination of conditional statements and mathematical operations. One way to solve this problem is through vectorization which is the preferred way to write codes in Matlab due to its efficiency.

Here's an example code to accomplish this:

main.m
x = [10, 15, 20, 25, 30, 35];
sum_x = sum(x(x<26));
disp(sum_x);
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In this code, we first define our original vector x. We then create a new variable sum_x, which is the sum of elements in x that are less than 26. To do this, we use the conditional statement x<26, which returns a logical vector with true or false values indicating which elements in x satisfy this condition. We then use this logical vector to index and extract the elements in x that satisfy this condition (x(x<26)), and use the sum() function to compute their sum.

The disp() function is used to display the result in the console.

The output of this code is 70, which is the sum of 10 + 15 + 20 + 25.