Re: vector of t_FRAC questions

[hermann@stamm-wilbrandt.de]

On 2024-07-16 10:18, Karim Belabas wrote:
> > Detailed doc "??gcd" mentions t_VEC only if x and y are passed.
>
> Not sure what you mean here:
>
> (08:44) gp > ??gcd
> gcd(x,{y}):
>
>    Creates the greatest common divisor of x and y. If you also need the 
> u and v
> such  that  x*u  + y*v = gcd(x,y),  use the gcdext function.   x and y 
> can have
> rather quite general types, for instance both rational numbers. If y is 
> omitted
> and  x  is  a  vector,   returns  the gcd of all components of x,  i.e. 
> this is
> equivalent to content(x). [...]
>
> Cheers,
>
>     K.B.
Thanks, you are absolutely right.
I am victim of very slow dvi viewer that gets opened on "??gcd", which 
displays
at a very small font. Increasing window and zooming takes a lot of time.
I missed that last sentence you showed, which describes behavior 
exactly.

How can I get "??gcd" help in terminal instead of dvi viewer?


Nice, "d/gcd(d)" seems to always scale (valid) vector of t_FRAC to 
vector of t_INT:

$ gp -q
? d=[5/2,7/3]
[5/2, 7/3]
? gcd(d)
1/6
? d/gcd(d)
[15, 14]
?


Regards,

Hermann.