Re: FLASH: anyone written an arctangent function for flash?

[Matt Wobensmith]

Hi John -


You wrote:


>Maybe I'm naive, but wouldn't it be better to use the

>loadvariable capabilities to run a perl, PHP or ASP

>script which has the functions built in?


What, you don't like my script? :>)


To answer your question, yes. Having an external scripting language with a

built-in math object would be more accurate and make more sense. However,

there are times where it would certainly be, um, nice to have an arctan

function in Flash.


I'm sure there are better ways to do arctan in Flash 4 - don't ask me to

write one, I don't know how - so I'm sure the group can answer that. This

was just one sample.


Matt




ps - that code again, since I love it so much! You have to admit that it has

a certain charm to it.


Comment: one big taylor series to calculate arctan

Set Variable: "x" = input

Set Variable: "arctan" =

x-(x*x*x/3)+(x*x*x*x*x/5)-(x*x*x*x*x*x*x/7)+(x*x*x*x*x*x*x*x*x/9)-(x*x*x*x*x

*x*x*x*x*x*x/11)+(x*x*x*x*x*x*x*x*x*x*x*x*x/13)-(x*x*x*x*x*x*x*x*x*x*x*x*x*x

*x/15)+(x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x/17)-(x*x*x*x*x*x*x*x*x*x*x*x*x*x*x

*x*x*x*x/19)+(x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x/21)-(x*x*x*x*x*x*x*x

*x*x*x*x*x*x*x*x*x*x*x*x*x*x*x/23)

Set Variable: "output" = arctan




---------------

Matt Wobensmith

Macromedia


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