piecewise function in matlab

In Matlab, you can define a piecewise function using an if statement or logical indexing. Here is an example using an if statement:

main.m
function y = myPiecewise(x)
    if x < 0
        y = 0;
    elseif 0 <= x && x < 1
        y = x;
    else
        y = 1;
    end
end
134 chars
10 lines

In this example, we define a function myPiecewise with a single input x. The if statement checks if x is less than 0, between 0 and 1, or greater than or equal to 1, and assigns the corresponding value of y.

Alternatively, you can use logical indexing to define a piecewise function:

main.m
function y = myPiecewise(x)
    y(x < 0) = 0;
    y(0 <= x & x < 1) = x(0 <= x & x < 1);
    y(x >= 1) = 1;
end
112 chars
6 lines

In this example, we use logical indexing to assign values to y based on the conditions. The first line assigns 0 to y where x is less than 0, the second line assigns x to y where x is between 0 and 1, and the third line assigns 1 to y where x is greater than or equal to 1.