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 Forum index » Clavia Nord Modular » Nord Modular G2 Discussion
What is Inv x2, Inv x3 in ShpStatic
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ik



Joined: Jan 30, 2005
Posts: 50
Location: North Carolina
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PostPosted: Sun Feb 20, 2005 1:08 pm    Post subject: What is Inv x2, Inv x3 in ShpStatic Reply with quote  Mark this post and the followings unread

I have been trying to find out what is 'Inv x2' and 'Inv x3' in ShpStatic.
See attached.
While I can "recreate" x^2 and x^3, I am having trouble to generate the formula for 'Inv x2'

1) it is not 1-x^2, (see attached).
2) it is not x^1/2, since multiplying by itself did not return x.
3) it is not 1/x^2, since multiplying by x^2 did not return 1(64).

- or is it a bug? -

Any help on this?
Thanks,
ik.


shapes.pch2
 Description:
What does 'Inv x2' (and 'Inv x3') stands for?

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 Filename:  shapes.pch2
 Filesize:  1.58 KB
 Downloaded:  669 Time(s)

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jksuperstar



Joined: Aug 20, 2004
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PostPosted: Sun Feb 20, 2005 4:18 pm    Post subject: Reply with quote  Mark this post and the followings unread

I think they are more similar to tangent/exponential (e^x, x^e, or ln(x)) functions.
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Blue Hell
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PostPosted: Sun Feb 20, 2005 5:26 pm    Post subject: Reply with quote  Mark this post and the followings unread

I think the only person outside Clavia who might know is Rob - I know him to have some remarks about 'm

Less intersting but personally I suspect the curves to be 'fantasy' curves, I've been kooking into curves for the NM Classic and could not make ssense out of those (in thas case the exp curves, which were not particulary exp).

I didn't try for the G2, so might someone find an answer, I'd really like to know as well !

Jan.
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ik



Joined: Jan 30, 2005
Posts: 50
Location: North Carolina
G2 patch files: 25

PostPosted: Sun Feb 20, 2005 5:45 pm    Post subject: Reply with quote  Mark this post and the followings unread

Quote:
I think the only person outside Clavia who might know is Rob - I know him to have some remarks about 'm


Ok. I have been able to figure out:

Inv x2 is y=1-(1-x)^2

and

Inv x3 is y=1-(1-x)^3

for positive x signals, and y just pick up the (-) sign for negativ x values.

See attached file.
ik.


shapes solved.pch2
 Description:
ShpStatic emulation.

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 Filename:  shapes solved.pch2
 Filesize:  1.76 KB
 Downloaded:  683 Time(s)

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Blue Hell
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PostPosted: Sun Feb 20, 2005 5:49 pm    Post subject: Reply with quote  Mark this post and the followings unread

Great ! Thanks.

Jan.
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mosc
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PostPosted: Sun Feb 20, 2005 7:50 pm    Post subject: Reply with quote  Mark this post and the followings unread

Good work... I'm impressed.
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