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## 'Painting by Functions' printed from http://nrich.maths.org/

To get you started on the algebra, it might help to note that the
mathematical curves used to represent Mondrian were

$$

\begin{eqnarray}

y&=&0.5\tan(1.2(x-1)) - 0.3\\

0.5(y-1.5)^2+x^2 &=& 0.6\\

(y-1.6)^2+0.25(x\pm 0.3)^2&=& 0.01\\

y&=&-8(x-1)^3\\

y&=&-2x-2\\

y&=&-4x -2\\

y&=&5x-2 \\

y&=&3x-2

\end{eqnarray}

$$