Cody

Problem 24. Function Iterator

Solution 1948107

Submitted on 25 Sep 2019
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Test Suite

Test Status Code Input and Output
1   Pass
noOp = @(x)x; fh2 = iterate_fcn(noOp, 50); assert(isequal(fh2(pi),pi));

fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x fh2 = function_handle with value: @(x)x

2   Fail

fh2 = function_handle with value: @(x)x+1

Undefined function 'plus' for input arguments of type 'function_handle'. Error in Test2>@(x)x+1 (line 1) addOne = @(x)x+1; Error in iterate_fcn (line 4) fh2 = (fh(fh2)) Error in Test2 (line 2) addTen = iterate_fcn(addOne, 10);

3   Pass

fh2 = function_handle with value: @(x)x+1

4   Fail
squarer = @(a) a^2; fh2 = iterate_fcn(squarer, 3); assert(isequal(fh2(3),6561));

fh2 = function_handle with value: @(a)a^2

Undefined function 'power' for input arguments of type 'function_handle'. Error in ^ (line 21) Z = X.^Y; Error in Test4>@(a)a^2 (line 1) squarer = @(a) a^2; Error in iterate_fcn (line 4) fh2 = (fh(fh2)) Error in Test4 (line 2) fh2 = iterate_fcn(squarer, 3);

5   Fail
fh = @(y)sqrt(y+1); fh2 = iterate_fcn(fh,30); assert(abs(fh2(1) - (1+sqrt(5))/2) < 100*eps);

fh2 = function_handle with value: @(y)sqrt(y+1)

Undefined function 'plus' for input arguments of type 'function_handle'. Error in Test5>@(y)sqrt(y+1) (line 1) fh = @(y)sqrt(y+1); Error in iterate_fcn (line 4) fh2 = (fh(fh2)) Error in Test5 (line 2) fh2 = iterate_fcn(fh,30);