[sdiy] SDIY MATH GOALS--need real help!

[Dan Snazelle]

ok

what about if it has little triangles? (are these delta? what school of math is this? algebra?)

also...i keep reading about transform functions...is that calculus?

i am also seeing a few other weird symbols pop up.
thanks so much


spending my saturday night reading "mastering technical mathematics"





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> Date: Sat, 28 Feb 2009 16:47:50 -0800
> From: dixon at interchange.ubc.ca
> Subject: RE: [sdiy] SDIY MATH GOALS--need real help!
> To: subjectivity at hotmail.com; synth-diy at dropmix.xs4all.nl
> 
> Dan,
> 
> If it's got "d something" over "d something" in it, its differential
> calculus (the d's on top and the somethings on the bottom can also have
> exponents).  If it has a big S-shaped thingy to the left of everything
> (often with little numbers or symbols above and below it), with a "d
> something" at the far right, its integral calculus.  If its got "e" or "exp"
> or "ln" or "log", then its an exponential or logarithmic function.  If it's
> got "sin" or "cos" or "tan" or "cot" or "sec" or "csc", with or without an
> "arc" in front or an "h" behind, then its trigonometry.  If everything is a
> function of "s" then it's a Laplace transform.  Alternatively, if everything
> is a function of "jw" (where the "w" is really an undercase omega), then
> it's a Fourier transform, which is really a Laplace transform where s = jw.
> If it's got lots of "j"s all over the place, then its complex math.
> Otherwise, it's just algebra!  (See how easy it all is?!?  ;->)
> 
> David G. Dixon
> Professor
> Department of Materials Engineering
> University of British Columbia
> 309-6350 Stores Road
> Vancouver, B.C. V6T 1Z4
> Canada
>  
> Tel 1-604-822-3679
> Fax 1-604-822-3619
>  
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>> -----Original Message-----
>> From: Dan Snazelle [mailto:subjectivity at hotmail.com]
>> Sent: Saturday, February 28, 2009 3:49 AM
>> To: dixon at interchange.ubc.ca; sdiy
>> Subject: RE: [sdiy] SDIY MATH GOALS--need real help!
>> 
>> 
>> 
>> 
>>> My advice to Dan and others would be not to set out to "learn math", but
>>> only electronics.  When something mathematical arises that you don't
>>> understand, then learn the specific bit of math required to get over the
>>> hump -- read a wiki, ask a friend, crack a textbook, whatever -- but
>> always
>>> only in the service of electronics.  This way, the math will slip in by
>>> osmosis.
>> 
>> 
>> one question i have about this good advice is how to TELL what i AM
>> LOOKING AT. (so i can understand a specific bit)
>> 
>> for example I just got the book on non linear electronics from analog
>> devices. It seems full of  great stuff BUT is full of equations.
>> however how can i tell just from looking at some weird equation what i
>> will need to learn to understand it
>> ? it's not as if they say "this is from algebra 2 or this is from calc"
>> 
>> so  that right there makes the piecemeal approach hard at times.
>> 
>> 
>> thanks
>