## Monday, August 29, 2011

### Flying Car (1) (飛天車 1)

( Mathematical software used: gnuplot )

Related posts:

## Sunday, August 28, 2011

### Woman's Body

( Mathematical softwares used: gnuplot, UDAV )

## Wednesday, August 24, 2011

### Cai Shen Cow (財神牛)

Note: Cai Shen (財神 or 財神爺) is the Chinese god of prosperity.

( Mathematical software used: UDAV )

## Saturday, August 13, 2011

### Stupid Robot (笨蛋機器人)

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

( Mathematical software used: gnuplot )

## Friday, August 12, 2011

### Leopard Witch (惡豹女巫)

( Mathematical software used: UDAV )

## Tuesday, August 9, 2011

### Deep Sea Monster (深海水怪)

( Mathematical software used: UDAV )

## Monday, August 8, 2011

### Mr. Octopus (章魚先生)

( Mathematical software used: gnuplot )

## Sunday, August 7, 2011

### Indigenous Dancer (土著舞者)

( Mathematical software used: UDAV )

## Tuesday, August 2, 2011

### Owl Scout (貓頭鷹偵察兵)

( Mathematical software used: UDAV )

Another math-generated owl picture by Maths is smART.
-- It's a 2D plot which looks like a 3D mesh plot. Very interesting!

## Monday, August 1, 2011

### Scilab example: plotting implicit curves (level curves)

In this example, we will plot the implicit curve (level curve, contour line) defined by
the equation fun(x,y) = 0.

fun(x,y) =

Scilab script:

xset("wdim",400,400);
xset("fpf"," ");
square(-2,-2,2,2);
function z = fun(x,y)
z = (x*x+y*y-3)*sqrt(x*x+y*y) + 0.75 ..
+ sin(4*sqrt(x*x+y*y))*cos(84*atan(y/x)) - cos(6*atan(y/x));
endfunction
data = linspace(-2, 2, 512);
contour2d(data, data, fun, [0,0], style=color("red"), axesflag=0);

The result plot:

More examples: