featurerequest: vectors and matrices

[jmishra17]

Was about to start writing some features for vectors and after looking at some of the code, thought that Vectors should operate on array of expressions as their data type:

For instance,

var Vector = function(args){
    this.vec = [];
    if (Array.isArray(args)){
        args.forEach(function (arg){
            var exp = new Expression(arg);
            this.vec.push(exp);
        });
    } else if(typeof(args) !== "undefined"){
        throw "Expected array of stirngs";
    } 
};

Vector.prototype.add = function(args){
    var otherVec = args;
    if (!(args instanceof Vector)){
        otherVec = new Vector(args);
    }

    if (this.vec.length !== otherVec.vec.length) {
        throw "Unequal lengths";
    }
    var thisVec = this.copy();
    var resultVec = new Vector();
    for (var i = 0; i<thisVec.length; i++){
        var addedExp = thisVec.vec[i].add(otherVec.vec[i]);
        resultVec.push(addedExp);
    }
    return resultVec;
};

Following this logic, nd-vectors or Martrices would operate on the same logic, keeping an array of vectors as their internal data structure.

Any suggestions?

[nicolewhite]

I think it makes perfect sense to maintain a Vector as an array of Expressions. That'll make basic operations pretty simple.

[nicolewhite]

How are you doing with this? I've been playing around with some code locally but I don't want to step on your toes if you're still working on it.

[jmishra17]

Actually, you can go ahead and write the feature for this. I have been busy with some other stuff. I am actually gonna go ahead and add plotting feature for all fractions, equations and expressions.

[jmishra17]

To add to that, I had a few framework adjustment ideas to suggest if you wanna talk this in detail. We can definitely open a Gitter Chat for this if you like

[nicolewhite]

Sure, we're over here: https://gitter.im/nicolewhite/algebra.js