[網頁] [泛科學] 如何用方程式寫春聯

http://pansci.tw/archives/75693

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x^4+y^4+100/(x^4+(2y-2)^4+(2y-1)^2)+

100/(x^4+(2y+2)^4+(2y+1)^2)-1/((y+3)^4+

(x/15)^4)-1/((y+4)^4+(x/15)^4)-1/((y+5)^4+(x/15)^4)-

1/(4(x+y+4)^4+((x-y+1)/5)^4)-100^16/(((x-4)^2+(y+5)^2-13)^2+

((x-19)^2+(y+12)^2-400)^2)^16-25