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# Problem 10. Determine whether a vector is monotonically increasing

Solution 193418

Submitted on 18 Jan 2013
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### Test Suite

Test Status Code Input and Output
1   Pass
%% x = [0 1 2 3 4]; assert(isequal(mono_increase(x),true));

tf = 1 tf = 1 tf = 1 tf = 1

2   Fail
%% x = [0]; assert(isequal(mono_increase(x),true));

Error: Output argument "tf" (and maybe others) not assigned during call to "/users/msssytem8/mono_increase.m>mono_increase".

3   Pass
%% x = [0 0 0 0 0]; assert(isequal(mono_increase(x),false));

tf = 0

4   Pass
%% x = [0 1 2 3 -4]; assert(isequal(mono_increase(x),false));

tf = 1 tf = 1 tf = 1 tf = 0

5   Pass
%% x = [-3 -4 2 3 4]; assert(isequal(mono_increase(x),false));

tf = 0

6   Pass
%% x = 1:.1:10; assert(isequal(mono_increase(x),true));

tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1

7   Pass
%% x = cumsum(rand(1,100)); x(5) = -1; assert(isequal(mono_increase(x),false));

tf = 1 tf = 1 tf = 1 tf = 0

8   Pass
%% x = cumsum(rand(1,50)); assert(isequal(mono_increase(x),true));

tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1 tf = 1