perplexus.info :: Just Math : Lattice in parallelogram

Lattice in parallelogram (Posted on 2024-12-21)

A parallelogram has coordinates (0, 0), (144, 0), (377, 89) and (233, 89).

Determine the number of lattice points strictly within the interior of the parallelogram.

No Solution Yet Submitted by Danish Ahmed Khan

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re: solution - discrepancy

Comment 4 of 4 |

(In reply to solution - discrepancy by Larry)

Larry's right:

clearvars

ct=0;

for x=1:376

for y=1:88

if y<89*x/233

if y>89*(x-144)/(377-144)

ct=ct+1;

end

finds

>> latticeInParallelogram

ct =

12672

Posted by Charlie on 2024-12-23 12:49:01

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