Funny Equations - 2D curves and plane regions

Type 1

1024x768 pixels (Click on the images for larger views.)

Type 2

Type 3

Type 4

( Mathematical software used: gnuplot )

Mr. M (M 先生)

( Mathematical software used: gnuplot )

Stupid Head (呆瓜頭)

( Mathematical software used: UDAV )

Little Old Man (2) (小老人 2)

Although this picture looks like a curve plot, it is not a curve plot.

It is a part of the graph of an inequality ( fun(x,y) <= 0 ).

The original graph of fun(x,y) <= 0.

( Mathematical software used: UDAV )

Related posts:

• Little Old Man (1)

Spiroface

(4 rolling circles)

(4 rolling circles)

( Mathematical software used: GeoGebra )

Funny Monster (搞笑怪物)

( Mathematical software used: gnuplot )

Making Love ♥

Linear Combination of Spirographs
(Hypotrochoid and Epitrochoid)

( Mathematical software used: GeoGebra )