How can I write the MATLAB code f(x) = x + 5 for 0<x<10?
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The following code did not solve the problem.
if ((0 < x) | (x < 100)) y = x + 5 end
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Answers (4)
Walter Roberson
on 10 Oct 2013
You cannot define that in MATLAB: it is not possible to define a function that has no definition over a particular range of arguments. You can define a function that is NaN outside a range, or 0, but you have to give it some meaning. Either that or never call the function with parameters outside the defined range.
sixwwwwww
on 10 Oct 2013
There is a work around to this problem using symbols in MATLAB as follows:
Suppose your x value lies over range from -100 to 100 and for range 0 to 10 you need y = x + 5, then you can do as follows:
syms x_sym y_sym
for x = -100:1:100
if (x > 0 && x < 10)
y_sym = x_sym + 5;
% Other processing as desired. Also result can be back converted from symbol type to
% double number type as
% y = double(subs(y_sym, x_sym, x));
end
end
I hope it will help you a little
5 Comments
Walter Roberson
on 4 Jan 2017
count is acting as an index into the vector being constructed. You do not know ahead of time how many values will match.
Big Wolf
on 6 Jun 2020
Write a MATLAB program to find the value of y when y=|x| when x<5 and y=5x when 5<or = x <10
1 Comment
Walter Roberson
on 8 Jun 2020
If x<5 but also 5<or=x<10 then x<5 but also 5<=x which is x >= 5. There is, however, not number which is simultaneously less than 5 and >= 5. Therefore the problem is impossible.
abod
on 12 Feb 2023
if r=10 and the i increased from 0 to 10 with increments of 2 and v=i*r
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