At this point, if I were to vote for new features....

[compsystems]

difference between := & =<


Possible error

Code:

m:=[1,2,3]; returns [1,2,3]
l:=m; returns [1,2,3]
m[1] =< 4; returns [4,2,3]
l; returns [1,2,3]  ? l should be [4,2,3]

Code:

m:=[1,2,3]; returns [1,2,3]
l:=m; returns [1,2,3]
m[1] := 4; returns [4,2,3]
l; returns [1,2,3] // ok

More info about (<=) cmd

http://www-fourier.ujf-grenoble.fr/~pari...ffectation

http://www-fourier.ujf-grenoble.fr/~pari...tml#htoc86