MaplePrimes - answers and comments on Question, Problem : How to assign variables to a list of expressions

assign

Robert Israel — Mon, 30 May 2011 03:07:41 Z

Do you mean something like this?

> zip(assign, [seq(w[i],i=1..349)], L);

(where L is the list of 349 values to be assigned).

One answer : reply

charbo — Mon, 30 May 2011 15:07:44 Z

Hello, thanks for reply.

Unfortunately, it is not working.

> liste:=[listevnouveau]:
> zip(assign, [seq(w[i],i=1..349)], liste);
[]

> zip(assign, [seq(w[i],i=1..349)], listevnouveau);

Error, (in zip) invalid input: ZipImplementation:-zip expects its 3rd argument, b, to be of type {Matrix, Vector, list, array, Array}, but received 7.946512590*(.9055555556e-1*Pi+.3862686567)*sin(474.4186622/w[1])/cos(-(-.9055555556e-1*Pi-.3862686567)*cos(474.4186622/w[1])-.3862686567)^2

Example: it's work

Kamel — Mon, 30 May 2011 20:33:01 Z

restart:

liste:=[x^2,2*y]:

zip(assign, [seq(w[i],i=1..2)], liste);

w[2];

2*y

listenouveau

Robert Israel — Mon, 30 May 2011 21:57:39 Z

It looks like your listenouveau is an expression sequence, not a list. Try [listenouveau] instead.

Hey guys, thanks for the replies.

charbo — Tue, 31 May 2011 00:55:33 Z

Hey guys,

thanks for the replies. I hazardly found the answer... I just had to put fsolve instead of solve. Sorry for the worries ^^'