Trying To Add Sine Waves

[Kornfeld Eliyahu Peter]

I meant apple π and cherry π :-D

Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

[Sascha Lefevre]

OriginalGriff wrote:

but I see what they are doing as well.

Don't think so: f=2, p=0 -> draw yellow, add, add -> double amplitude f=2, p=0 -> draw yellow, add; f=2, p=3.141 -> add -> double amplitude, should be flat.

If the brain were so simple we could understand it, we would be so simple we couldn't. — Lyall Watson

[Kenneth Haugland]

Well, its all connected: Sin(2*pi*n) = 0 Without pi the Taylor series is sin and cosine is pretty much useless in Fourier Transform for instance.

[OriginalGriff]

Wouldn't that be iπ?

Bad command or file name. Bad, bad command! Sit! Stay! Staaaay...

[Forogar]

Shakespeare Geometry: 2π or not 2π? (That is the question.)

- I would love to change the world, but they won’t give me the source code.

[Richard Andrew x64]

OriginalGriff wrote:

Does that mean I have to become racist and get a comb-over?

Obama doesn't have a comb-over. :rolleyes:

The difficult we do right away... ...the impossible takes slightly longer.

[C P User 3]

Hold it, Microsoft *Excel* will do that, I think. Yes ? No ? Will LibreOffice *Impress* also do the same thing ? I seem to remember this from 3 or 4 years ago. We did this with some procedure.

[Kenneth Haugland]

No, please sir, not Excel. Its sooo crude that any person can use it :laugh: And dont get me started on the macros, one for every operation :sigh:

[C P User 3]

Now if only I could make the lines fatter, and choose the color ! Beggars can't be choosers ? Bah ! Humbug !

[xperroni]

That's it. Enter 3.14 instead of 180.

"Whereas smaller computer languages have features designed into them, C++ is unusual in having a whole swathe of functionality discovered, like a tract of 19th century Africa." -- Verity Stob http://www.theregister.co.uk/2006/05/05/cplusplus\_cli/

[KP Lee]

OriginalGriff wrote:

Does that mean I have to become racist and get a comb-over?

Good one. I think I laugh more often reading your comments than any other poster on this site. Unfortunately, our nation seems to like ping-pong-ING winners and we might just get that one this time. If you wait four years we may be ready to elect another president that makes sense. (That's optimistic, we also usually re-elect the screw-ups as well as the decent ones.)

[C P User 3]

Your find is perfect for adding two waves. Thank you. I am now on my own little quest to find some freeware/cheapware that will let me do the same thing with a bunch of functions, and then let me choose which graphs to add (e.g., *add graph "A" to graph "B", and graph "C", and draw the result as the target graph*, whatever). A wide across-the-screen strip would be cool. Graphing was always the sore point for me in math courses. Today's kids don't know how good they have it with mathematical graphing. Thirty minutes with DESMOS[^] and I made THIS GRAPH[^] which shows all the inputs, which is good. I also want to show my reader the output (i.e., the five waves added together as a single curve) I found THIS PAGE[^] which could keep me busy for months just evaluating the 118 possible suitors. Opinions / advice on these or others will be welcome.