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Problem 24. Function Iterator

Solution 2128116

Submitted on 14 Feb 2020 by xr hu
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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: @iterate_fcn/b x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 x = 3.1416 y = 3.1416

2   Pass
addOne = @(x)x+1; addTen = iterate_fcn(addOne, 10); assert(isequal(addTen(3),13));

fh2 = function_handle with value: @iterate_fcn/b x = 4 x = 5 x = 6 x = 7 x = 8 x = 9 x = 10 x = 11 x = 12 x = 13 y = 13

3   Pass
addOne = @(x)x+1; addOne2 = iterate_fcn(addOne, 1); assert(isequal(addOne2(3),4));

fh2 = function_handle with value: @iterate_fcn/b x = 4 y = 4

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

fh2 = function_handle with value: @iterate_fcn/b x = 9 x = 81 x = 6561 y = 6561

5   Pass
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: @iterate_fcn/b x = 1.4142 x = 1.5538 x = 1.5981 x = 1.6118 x = 1.6161 x = 1.6174 x = 1.6179 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 x = 1.6180 y = 1.6180

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