Problem 24. Function Iterator
Given a handle fh to a function which takes a scalar input and returns a scalar output and an integer n >= 1, return a handle fh2 to a function which applies the given function n times.
Examples:
>> addOne = @(x)x+1; >> addTen = iterate_fcn(addOne, 10); >> addTen(3) ans = 13
>> squarer = @(a) a^2; >> fh2 = iterate_fcn(squarer, 3); >> fh2(3) ans = 6561
% Golden Ratio >> fh = @(y)sqrt(y+1); >> fh2 = iterate_fcn(fh,30); >> fh2(1) ans = 1.6180
Solution Stats
Problem Comments
-
27 Comments
Show
24 older comments
N/A
on 10 Dec 2021
Help,help, I can't do it.
Anna
on 20 Oct 2023
usefully skills learned while doing problems.
Christian Schröder
on 20 Oct 2023
@Yin Late reply, but: as far as I know, forbidden functions (on Cody in general) are, at least, assignin, builtin, dos, eval, evalc, evalin, inline, path, perl, rehash, str2func, system, and unix.
Solution Comments
Show commentsProblem Recent Solvers2183
Suggested Problems
-
Remove the small words from a list of words.
1538 Solvers
-
Back to basics 19 - character types
266 Solvers
-
Multiples of a Number in a Given Range
777 Solvers
-
517 Solvers
-
1077 Solvers
More from this Author96
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!