"Lounento" <som### [at] somewherecom> writes:

> I've done some expirement animations with Povray, but have been missing a
> couple of useful features. In order to make objects to move smoothly, the
> object has to have a mathematical function that define the object's path.
> Sine/cosine and exponent functions would be of great help there. Although
> you can type "clock*clock" to make it a parabel, an exponent feature would
> be much easier to use and it would also make possible to take the square
> root (x^.5).

Read the fine manual, in particular the section "Float Functions". Here's
an excerpt:

cos(A) Cosine of A. Returns the cosine of the angle A, where A is measured 
in radians.

exp(A) Exponential of A. Returns the value of e raised to the power A where e 
is the base of the natural logarithm, i.e. the
non-repeating value approximately equal to 2.71828182846.

sin(A) Sine of A. Returns the sine of the angle A, where A is measured in 
radians.

and many other useful functions.

Thomas

P.S.: I know that the Povray manual is huge and that one can easily overlook
a section.
P.P.S.: Please post your articles with real name.

-- 
http://www.fmi.uni-konstanz.de/~willhalm

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