Cody

# Problem 1771. Polygonal numbers

Solution 811572

Submitted on 21 Jan 2016 by David Schafer
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### Test Suite

Test Status Code Input and Output
1   Pass
%% assert(P(4,3)==9)

y = 9 y = 9

2   Pass
%% s=3; n=1:5; y_correct=[1 3 6 10 15]; assert(isequal(P(s,n),y_correct))

y = 1 y = 1 3 y = 1 3 6 y = 1 3 6 10 y = 1 3 6 10 15

3   Pass
%% s=3:6; n=4; Y_correct=[10 16 22 28]; assert(isequal(P(s,n),Y_correct))

y = 10 y = 10 16 y = 10 16 22 y = 10 16 22 28 y = 10 16 22 28

4   Pass
%% s=randi([3 1000],1,10); n=1; y_correct=ones(1,10); assert(isequal(P(s,n),y_correct))

y = 1 y = 1 1 y = 1 1 1 y = 1 1 1 1 y = 1 1 1 1 1 y = 1 1 1 1 1 1 y = 1 1 1 1 1 1 1 y = 1 1 1 1 1 1 1 1 y = 1 1 1 1 1 1 1 1 1 y = 1 1 1 1 1 1 1 1 1 1 y = 1 1 1 1 1 1 1 1 1 1

5   Pass
%% s=randi(1000,1,10)+2; n=5; y_correct=10*s-15; assert(isequal(P(s,n),y_correct))

y = 6675 y = 6675 7805 y = 6675 7805 2695 y = 6675 7805 2695 7375 y = 6675 7805 2695 7375 2025 y = 6675 7805 2695 7375 2025 6315 y = 6675 7805 2695 7375 2025 6315 9715 y = 6675 7805 2695 7375 2025 6315 9715 7095 y = 6675 7805 2695 7375 2025 6315 9715 7095 8175 y = 6675 7805 2695 7375 2025 6315 9715 7095 8175 1085 y = Columns 1 through 8 6675 7805 2695 7375 2025 6315 9715 7095 Columns 9 through 10 8175 1085

6   Pass
%% s=[5 6 7]'; n=[2 8 9]; y_correct=[5 92 117;6 120 153;7 148 189]; assert(isequal(P(s,n),y_correct))

y = 5 y = 5 92 y = 5 92 117 y = 5 92 117 6 0 0 y = 5 92 117 6 120 0 y = 5 92 117 6 120 153 y = 5 92 117 6 120 153 7 0 0 y = 5 92 117 6 120 153 7 148 0 y = 5 92 117 6 120 153 7 148 189

7   Pass
%% s=randi([3,1000]); n=randi([3,1000]); assert(P(s+1,n+1)-P(s,n+1)==P(3,n))

y = 25715866 y = 25715866 y = 25665145 y = 25665145 y = 50721 y = 50721