Problem 1771. Polygonal numbers

Solution 914946

Submitted on 25 Jun 2016 by Hao li

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Test	Status	Code Input and Output
1	Pass	assert(P(4,3)==9)
2	Pass	s=3; n=1:5; y_correct=[1 3 6 10 15]; assert(isequal(P(s,n),y_correct))
3	Pass	s=3:6; n=4; Y_correct=[10 16 22 28]; assert(isequal(P(s,n),Y_correct))
4	Pass	s=randi([3 1000],1,10); n=1; y_correct=ones(1,10); assert(isequal(P(s,n),y_correct))
5	Pass	s=randi(1000,1,10)+2; n=5; y_correct=10*s-15; assert(isequal(P(s,n),y_correct))
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))
7	Pass	s=randi([3,1000]); n=randi([3,1000]); assert(P(s+1,n+1)-P(s,n+1)==P(3,n))

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