How to write an if-else statement for a function

Question

0 个投票

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
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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?

Answer 1

Michael 2022-8-30

0 个投票

if n>1
    f = sqrt(1 + f(n-1));
elseif n == 1
    f=2;
else
    f = NaN;
end

Michael 2022-8-30

Might want to check out the Matlab Onramp course.

Answer 2

Torsten 2022-8-30

编辑：Torsten 2022-8-30

0 个投票

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