Ok. Consider the example of the 2*2 square matrix : « *matrix([[a*log(sin
x)-2*log(x), log(x)+log(y)], [log(x)-log(y), 3*log(x)-4*log(x+3)+log(y)]]) *»
and the rules : «*logrules:=rule(log(x)+log(y)==log(x*y);
log(x)-log(y)==log(x/y);y*log(x)==log(x^y)) *». If, i put : « *f:=a*log(sin
x)-2*log(x) *» and use the command « *logrules f *», i obtain : «
*log(sin^{a}(x)/x^2)* ».
But if i use the command « *logrules M* », i obtain : « *There are no
library operations named logrules*
*Use HyperDoc Browse or issue *
*)what op logrules *
*to learn if there is any operation containing " logrules " in its *
*name. *
*Cannot find a definition or applicable library operation named *
*logrules with argument type(s) *
*Matrix(Expression(Integer)) *
*Perhaps you should use "@" to indicate the required return type, *
*or "$" to specify which version of the function you need. *».
Is it possible to simplify the matrix M in one shot? Idest all the elements
of the matrix M in one shot?
Thanks in advance.
Le lundi 8 juin 2015 18:34:25 UTC+2, Ralf Hemmecke a écrit :
>
> On 06/08/2015 05:35 PM, Souleiman omar hoche wrote:
> > Hello everyone. I want to know if it is possible to simplify a square
> matrix with
> > the command "ruleset".
> > Until now, I managed to simplify each element of the matrix separately,
> but
> > it is long (my matrix is 4 * 4).
> > I want to write my pile of rules and use it to simplify the matrix at
> once. The
> > result will be in the form of a matrix where the elements are simplified
> with
> > the rules.
>
> The simplest thing that comes to my mind is to use map the rules on the
> entries of the matrix. But unless you make your problem more specific, I
> cannot help you much more.
>
> Maybe using "rule" or "ruleset" is even inappropriate for your problem.
>
> Ralf
>
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