How to write an if-else statement for a function

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Sofie Önnemar
Sofie Önnemar 2022-8-30
编辑： Torsten 2022-8-30
The function is:
f(n) = sqrt(1 + f(n-1)) if n>1 and f=2 if n=1
but I don't know how to start even.
  1 个评论
Sofie Önnemar
Sofie Önnemar 2022-8-30
编辑：Walter Roberson 2022-8-30
for n=
if n>1
f=sqrt(1+(n-1));
else
f=2;
end
end
this is what I got, but what do I write in the start with n= ???? to get the correct values?

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回答（2 个）

Michael
Michael 2022-8-30
if n>1
f = sqrt(1 + f(n-1));
elseif n == 1
f=2;
else
f = NaN;
end
Torsten
Torsten 2022-8-30
编辑：Torsten 2022-8-30
Ran in:
n = 6;
f = 2;
for i = 2:n
f = sqrt(1+f);
end
f
f = 1.6191
finf = 0.5+sqrt(0.5^2+1)
finf = 1.6180

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