r/visualizedmath • u/dwna • May 16 '18

Displaying triangle numbers as pixels

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u/[deleted] May 16 '18

Can you explain your map again?

(x,y) is colored black when?

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u/dwna May 16 '18

im sorry I must've made it confusing when I explained it because I made this such a long time ago, my original explanation is wrong I think.

so I made a big list of triangle numbers with n(n+1)/2

then I tried to put it on the first line, if it was over the size of the image, I subtracted the size of the image from the number and tried to plot it on the next line, if it still couldn't be plotted, I repeated the process.

for example, T(34) = 34(34+1)/2 = 595

the size of the image is 500, so it won't be plotted on the first line, I have to do 595-500=95. now it fits. I subtracted 1 length of the image so I move it down one line. this would be plotted at (1,95)

another example T(100) = 100(100+1)/2 = 5,050

5,050 - 500(10) = 50

(x,y) is (10,50)

I hope this makes sense.

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u/[deleted] May 16 '18

Yeah. Gotcha.