Stop the Inf numbers
3 views (last 30 days)
Show older comments
Hi all,
have this bit of code that reads:
function R = resistors()
r = transpose(100:100:400);%transpose to column vector
R = 1./((1/r)); % (.) makes the vector even
end
and its results read;
>> resistors
ans =
Inf Inf Inf 400
i want to stop or not have the Inf, but the real numbers, can someone point me in the right direction? need it for an assesment.
Thanks
Jon
3 Comments
Stephen23
on 12 Mar 2020
"1/(1/r) Is the same as just r"
This is totally incorrect.
How is solving systems of linear equations anything like calculating the inverse?
Answers (1)
Stephen23
on 12 Mar 2020
Edited: Stephen23
on 12 Mar 2020
You used the wrong operator: mrdivide / solves a system of linear equations.
You need to learn the differrences between matrix operations and array operations, otherwise all of your MATLAB code will produce meaningless rubbish outputs:
Use rdivide ./
2 Comments
John D'Errico
on 12 Mar 2020
Edited: John D'Errico
on 12 Mar 2020
In my hoped for new post as official WhiteHouse MATLAB counsel, I will recommend that infs and NaNs be forever outlawed. They only confuse people anyway. I might even try to require that pi==3, as this would make many computations much simpler for children in school. By the way, the Earth will soon be mandated to be flat, if I get my way.
My campaign is beginning today. Please get your write-in votes in as soon as possible!
See Also
Categories
Find more on Plot Customization in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!