Re: [ng-spice] Rework-13


To ng-spice@ieee.ing.uniroma1.it
From Paolo Nenzi <pnenzi@ieee.ing.uniroma1.it>
Date Mon, 6 Nov 2000 17:19:54 +0100 (CET)
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In-Reply-To <00110618155100.01796@leipc8 >
Mailing-List contact ng-spice-help@ieee.ing.uniroma1.it; run by ezmlm
Reply-To ng-spice@ieee.ing.uniroma1.it

> yes, when I do a dc analysis for instance, the differential of a vector (say
> v(1) ) can be define by :
> 
> let dd=deriv(v(1))
> 
> 
> Here is its definition in the doc :
> 
> deriv(vector)              Calculates the derivative of  the  given
>                             vector.   This uses numeric differentia-
>                             tion by interpolating a  polynomial  and
>                             may  not  produce  satisfactory  results
>                             (particularly with iterated differentia-
>                             tion).   The  implementation  only cacu-
>                             lates the dirivative with respect to the
>                             real componant of that vector's scale.
> 
> 
> 
> This king of function has been removed from the source in the 
>ngspice-rework12
> or may be before: the source of this function can be found in
> src/maths/cmaths/cmath4.c. 
> 

I will see, if it was removed, may be it had problems. I will check the
CVS.

Paolo


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