PURE DATA: Lesson 03, Basic Math & Bang Order

[KatherineSchmied]

Hi!!! I like u video!!!could u help me with something..i have to do y=x^(2+x) and y= 1-(x)^2 .but doesn't work...and don't know why .could u help me please!!

[lukasz]

thanksf or great videos by the way, they are awesome!

[lukasz]

bit confused. so what do you mean by the argument is set before you do the addition. the argument needs the variables before it does the addition doesn't it? so 5 and 10 is set then 5 + 10 is executed. in the linking it looks like the 5 goes into to addition via trigger then 10 added after.

what is confusing is why 5 AND 10 is connected to addition. shouldn't trigger store both variables via the trigger? so really you could connect trigger to input of 5 and 10 then output trigger to addition?

[Waterkater]

First off all thank you for you videos, What i would like to know is how to add multiple variables to an equation. Everytime i connect 3 variables to the equation it only sums up 2 at random.

[cheetomoskeeto]

@Waterkater remember that PD will sum in the order of the connections made. to force calculation order, you should use a trigger [t ] object. for numbers that will change, you'd use the right inlets of the math objects. finally, for more C-like coding, look into the [expr] object.

[naswolmir]

Thanks a lot! Your lessons are very well done and so helpful!

[ASharawadji]

hello Dr. im starting to use and learn PD and ive come across a couple of things im not sure i understand.

do you know when using the div and mod objects, what exactly is the "remainder"

and where can i find more info on the trigonometric functions applied to audio, i dont see the purpose on using sin, cos, tan on audio signals, if you could make a video for those maybe i could understand the use for these.

thank you.

[cheetomoskeeto]

@ASharawadji [div] and [mod] both have good help files that explain their difference. as for [sin] and the others, those are often used for envelope (amplitude) shaping and fading (or crossfading) to make better responding faders and more expressive note envelopes.

[ASharawadji]

@cheetomoskeeto thank you Dr. ill look at the help files for div and mod.

Sorry to bother you with this but, would you be so kind to make a video on how to make a decent oscilloscope on PD?

im trying to build waveforms using additive synthesis and id like to have an oscilloscope to make sure im doing it right and the default scope in pd doesnt have a good resolution.

hope you have some time, that would really help me on my synthesis theory.

[cheetomoskeeto]

@ASharawadji Has it occurred to you to use Google or your favorite search engine to have these questions answered? Trying searching for "how do I make an oscilloscope in PD." I appreciate you watching but I'm remiss to offer anymore guidance on issues whose solutions reveal themselves through simple research.

[ASharawadji]

@cheetomoskeeto of course, if i had found something i could understand i wouldnt be asking on youtube, i just thought since you have these videos you probably had time to answer my question but now i see that you dont, excuse me for asking i wont bother you anymore, im sure you are a busy man.

peace.

[bw0n6]

I am just starting to learn pd and these videos are a wonderful resource. Thanks so much Dr. Hernandez!

[cheetomoskeeto]

@bw0n6 my pleasure. hopefully more will be coming in summer 10.

[tekhiun]

great tutorial, I started learning this programming paradigm today , and not are these tutorials easy to understand but you also get a lot of the jargon used

[DavidArau]

Thank you Prof.Hdez.