Hi Samuel, Parsing p==-1:1 as p==(-1:1) would make Scilab output: ans = F T F
consistent with Matlab: ans = 1x3 logical array 0 1 0 And with Octave: ans = 0 1 0 Regards, Rafael From: users <[email protected]> On Behalf Of Samuel Gougeon Sent: Tuesday, July 31, 2018 9:52 PM To: International users mailing list for Scilab. <[email protected]> Subject: [Scilab-users] == and : relative priorities, as in 0==-1:1 Hello, Here is a strange -- rather unexpected -- trivial behavior: --> p = 0; p==-1:1 Undefined operation for the given operands. check or define function %b_b_s for overloading. I would have expected [%f %t %f], but "==" 's priority is higher than ":"'s one, and the expression is parsed (p==-1):1. It's the same with other comparisons, like p>-1:1. It was the same behavior in Scilab 5.5.2. Since by default ":" is defined and meaningful for a very limited set of operands types: numbers and text (, and that ":" does not accept a vector as operands), what about inverting the comparisons and ":" relative priorities, in order to parse p==(-1:1) ? "~" and comparisons relative priorities are inverted in Scilab 6. That's more handy. IMO here is another opportunity get a more relevant and handy behavior, by inverting ":" and comparisons ones. Don't you think so? Regards Samuel
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