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two inputs and two equations

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Aleksandra Ksiezyk
评论： Aleksandra Ksiezyk 2020-2-5
hey !
is there a way to write a script/funtion/loop that understand i have two inputs (one is set and the second reminds "empty") and two equations with the same output, take the right equation and calculate my output ? eg
i have two possible inputs: Hp and Hkom
equations:
V = 12 + 3.2*Hp
or
V = 12 + 4*Hkom
i want matlab to understand that if i set one input Hp = 12 the second imput Hkom should be neclacted and take the write equation: V = 12 + 3.2*Hp
and calculate my V ??
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Aleksandra Ksiezyk
Aleksandra Ksiezyk 2020-2-4
no, i did not try because i want to avoid case or if. that is why i wrote here if anyone has some idea to solve it.
John D'Errico
John D'Errico 2020-2-4
As I pointed out, you still really do need to use an if, in some form.

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John D'Errico
John D'Errico 2020-2-4
This is easy enough to answer, as long as EXACTLY ONE of the two inputs was provided.
However, you need to consider what happens if BOTH or NEITHER of the values were provided. In those cases, your code would fail. It must fail, because an incomplete definition was given.
What code would I write to solve this? Simplest might be:
if numel([Hp,Hkom]) ~= 1
error('The sky is falling!')
else
V = [12 + 3.2*Hp,12 + 4*Hkom];
end
  1 个评论
Aleksandra Ksiezyk
Aleksandra Ksiezyk 2020-2-5
it does not work at all. :(
it i assign Hp = 6 and Hkom=2 it does not work and when i write only one variables .
Hp= 6;
Hkom=2;
if numel([Hp,Hkom]) ~= 1
error('The sky is falling!')
else
V = [12 + 3.2*Hp,12 + 4*Hkom];
end

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