Cody

# Problem 1771. Polygonal numbers

Solution 297881

Submitted on 7 Aug 2013 by James
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### Test Suite

Test Status Code Input and Output
1   Pass
%% assert(P(4,3)==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 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 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 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 = Columns 1 through 8 3365 6805 1375 7225 1075 6545 4955 7805 Columns 9 through 10 7165 9045

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 40 45 12 48 54 14 56 63 y = 5 92 45 12 48 54 14 56 63 y = 5 92 117 12 48 54 14 56 63 y = 5 92 117 6 48 54 14 56 63 y = 5 92 117 6 120 54 14 56 63 y = 5 92 117 6 120 153 14 56 63 y = 5 92 117 6 120 153 7 56 63 y = 5 92 117 6 120 153 7 148 63 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 = 50445193 y = 50388577 y = 56616

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