3.20. helicoid


The helicoid [ 3,11 ] is represented by the following equations.


x = u cos(v)



y = u sin(v)



z = cv


The constant c determines the appearance of the figure.

To represent the area, the two parameters u and v can assume the following values ​​(domain of definition), for example.


u is an element from the set of numbers [-2.0, 2.0]


v is an element of the number set [0, 2pi]


The helicoid is a half-open figure, so the domain of u can be changed in the plugin.

Fig. 24

[back] [Table of contents] [next]

Original text