CAS command question

[parisse]

(01-07-2017 11:25 AM)DrD Wrote:  The historical legacy for the current operation is understood. Notwithstanding this legacy, a progressive approach might include two additional new commands, lhs(), and rhs(), to make both the ppl, and CAS more useful, and more consistent with their more robust, but comparable products.
-Dale-

I'm not sure you realize that, but what you ask is a little bit like asking + to work in RPN mode like in algebraic mode, after all writing 2+3 is more intuitive than << 2 3 + >> or '2+3' EVAL. Evaluation is at the heart of how a CAS work, you can not change that. Matlab is not a CAS, you can't compare. Maple is a CAS and looking at Han's explanations it does (almost) the same as Giac. Maxima is also a CAS but it does not really handle inequations, for example you can't solve(y^2>2,y), therefore it's easier for Maxima to keep > >= < <= inert.