Sep 10, 2010 at 7:59am
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
Sep 10, 2010 at 8:38am
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?
Sep 11, 2010 at 3:31pm
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
Sep 17, 2010 at 12:55am
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
Sep 21, 2010 at 10:21am
… hmm … set new members to “moderated” ?
Sep 21, 2010 at 11:08am
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)
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