does anyone have a function generator (float data) to generate a "mexican hat" waveform?
i have a custom gaussian generator, and i have peter castines patch for
laplace, (which i think is identically with the mexican hat) but both dont
create curves for waves, they are only creating random numbers of the
Not sure what kind of function you are after, but there are some very handy patches out there for similar things.
Try the patch sm.window-maker by Steven Miller.
Also one of Fredrik Olafsons abstractions could be the one. Look at "Make envelopes".
And Graham Wakefield posted a very nice patch in this thread:
Maybe not what you where after?
sm.window-maker … yeah i have my custom window makers, too, that is what it is about.
the function "flat-top" seems to be at least something similar to laplace, the form
looks familiar, just the weighting seems different.
mexican hat / laplace should result in almost identical sqare-roots (energy) for both poles.
OK, let me start off by saying that I know fuck all about this.
However, if a mexican hat is a negative normalised distribution of a second derivative of a Gaussian function, then is this any help?
Second derivative of a Gaussian function.
(a*e^(-((b-x)^2)/(2*c^2)) * (b^2 – 2*b*x – c^2 + x^2)) / c^4
… hmm … set new members to "moderated" ?
Or add a difficult captcha for new members? Or implement the Akismet API? (the latter is probably a lot of work, but it works very well)