DSP Robotics Support

since std:: isnt available and math:: doesnt have it, it seems that

is the only way to go.

is that best practice? it is really hard to read for me, i know it as max(0, 5)

plus i think an array creates at least a namespace in memory, if not more troublesome stuff.

just following along with your posts 110.

I noticed RUBY ERRORs in this last example. It seems the 'period' after a number is throwing an error.
I removed the 'dot', and the calculations show. [i've not verified the correctness of the calculation].

Anyway, just thought I'd mention, as I look to learn every chance I get.

thanks for your posts !

i know that the one or other is following and wonders how to help. it is probably not so obvious what i exspect.
so i just share my experience, better than nothing.

which period, that 69. in the rightmost module?

yes, thats also coming from maxmsp-expr where this dot indicates that the number is a float and should also be used like that.

while it is valid to write expr $f1*69 in max and returns a float (because the variable $f1 is of type float), you will run into trouble when you try to do expr $f1/69 - because the division will now be performed in int, so if you send a 17 in this thing it will return 0. float.

unlike in pure data, we know int and float in max and in most situations using a float matters (expr is actually one of the few exceptions), and we may write 69. for 69.0 .

i guess if i take all these things into account for automatic conversion of my expressions, my max-to-ruby max-patch will be more complicated in the end than my most complicated expression is.

110 wrote:since std:: isnt available and math:: doesnt have it, it seems that

Code: Select all

output [@f1, 5].max

is the only way to go.

is that best practice? it is really hard to read for me, i know it as max(0, 5)

plus i think an array creates at least a namespace in memory, if not more troublesome stuff.

not really. When you call [a,b,c].max what happens is array is created, max method is called upon it and array gets discarded. If you had function like max(a,b,c) what would ruby do is create array [a,b,c] and pass that array to the max(*p) method. it is effectively the same thing happening. If you really want to use traditional max/min method you can easily create one:

interesting!

so i know two working methods now to choose from.

here is the next issue. for noise with chi distribution i need to trigger this

((Math.sqrt(-2.0*Math.log(1.0-(rand))))*(Math.cos((rand)*6.283185307))**2.0)

for n times and accumulate the result.

no idea how to do that in ruby - and no idea how to make 5 consecutive triggers from 1 outside the ruby object.

both would be a good exercise.

it seems i could do

where i need

to output 0 and 1.
but it looks a bit strange and converting that programatically will be more work then to type it by hand.

110 wrote:which period, that 69. in the rightmost module?

Yes ... for that example, I just added a '0' after the period ---> 69.0

It seems SYNTAX is particular about this.

Same thing [i believe] with examples like: 0.123456 It seems the 0 in front of the decimal point is required.

right, there were more errors like that, they just didnt show up as errors as inputs were missing and stuff.


so now here...



nice try, 110, but "stack level too deep". hmpf.

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