accept implicit multiplication as input

Hi Davide,

Look at the lines below:

var a=require('algebrite');
var expr="(2x-5)*(3x-3)*(x+4)";
var exprS = a.simplify(expr).toString();
console.log(exprS);   // display  3 (2 x^3 + x^2 - 23 x + 20)
console.log(a.expand(exprS).toString());    // display nil
exprS = exprS.charAt(0) + "*" + exprS.slice(1);  // put a "*" between 3 and the rest
console.log(a.expand(exprS).toString());   // display 6 x^3 + 3 x^2 - 69 x + 60

Simplify produces a expression with implicit multiplication (“*”) but expand does not accept it. I believe that the best approach would be expand come around to accepting implicit multiplication.

[davidedc]

can now parse the example above - can parse whenever one of the factors is a “naked” number. See tests at the commit linked in the “closure” message above.

[paulobuchsbaum]

Great, @davidedc, thanks!