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ddelouis (10) 4 Articles, 6 Replies, 10 Points

Since 5/23/2012 8:36:42 AM, ddelouis has written 4 articles and participated in 6 conversations.
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ddelouis

ddelouis's articles:
 Items(4) /1 DSP - General Question 5 44 (6/12/2007 3:42:31 PM) comp.dspHi. Wondering if anyone knows if there is a way to solve this. Small example. Suppose one has a good FFt program, and took the FFt of 5 real data points (non 2^n size) If someone else only has a Radix-2 progr...Dana Re: Uniform arc length basis curve fitting #2 0 19 (6/25/2006 7:52:58 AM) comp.soft-sys.math.mathematicaHi. I do not know if this will help, but here is a general discussion of finding the arc length of the Cubic Spline example. Needs["NumericalMath`SplineFit`", "Graphics`Spline`"] pts = {{0, 0}, {1, 2}, ...Dana Re: Re: unable to FullSimplify 0 25 (4/22/2006 9:03:05 AM) comp.soft-sys.math.mathematica > FullSimplify[Expand[x + (x + x^2)^4] > /. x -> y - 1] /. y -> x + 1 A slightly different idea might be to 'remove' a part Here are the 3 problem equations: e1 = Expand[a + (a ...Dana SpeakTextPacket in 5.2 0 47 (4/2/2006 9:25:38 AM) comp.soft-sys.math.mathematicaHello. I use to have this function in my startup file. It would speak the text, and I remember that it worked well. say[s_String]:= FrontEndExecute[SpeakTextPacket[s]] However, I have not gotten this t...Dana

ddelouis's replies:
 Items(6) /1 How to define a constant in mathematica like Pi 3 48 (1/25/2006 1:54:32 PM) comp.soft-sys.math.mathematicaHi all, I'm posting a question asked by someone who is currently unable to post here. Here's the problem: I would like to define a constant in mathematica for example c=1.2345 in such a way that...jcsantos (1099) how to iterate 10 49 (4/24/2006 10:28:23 AM) comp.soft-sys.math.mathematicahi all, pls excuse my ignorance. i'm still new to mathematica, and i forgot much of what i had learned. how can i list the output of the function below for n=4..2006? f(n) = ( f(n-1) + f(n-2) + 1 ) / f(... Simplifying algebraic expressions 3 49 (6/1/2006 11:03:56 AM) comp.soft-sys.math.mathematicaHello: I would like Mathematica to be able to take an expression, say, (-1)^{2 x + 3 y} and be able to simplify to (-1)^y. Is there a way one can do this ? Thanks ...aroy (2) List manipulation question 2 33 (6/11/2006 6:42:28 AM) comp.soft-sys.math.mathematicaDear experts, I need to calculate distances between the elements of the following list: list={3700, 3800, 3900, 3950, 4000, 4050, 4100, 4150, 4200, 4250, 4300, 4350, 4400, 4450, 4500, 4550, 4600, 4650}...lectorz (12) calculate Recurrence Equations 9 94 (8/17/2006 8:40:30 AM) comp.soft-sys.math.mathematicahi, i?m in trouble with my Recurrence Equations: i?ve defined the following function anteil[0] = 1 anteil[n_] := anteil[n - 1] + (anteil[n - 1]*5 - 1)/100 i want mathematica to calculate the values...frank.hechtner (10) DSP - General Question 5 44 (6/12/2007 3:42:31 PM) comp.dspHi. Wondering if anyone knows if there is a way to solve this. Small example. Suppose one has a good FFt program, and took the FFt of 5 real data points (non 2^n size) If someone else only has a Radix-2 progr...ddelouis (10)