Update note about operator overloading

kgryte · kgryte · commit a96748d6b405 · 2017-02-02T21:41:06.000-08:00
diff --git a/FAQ.md b/FAQ.md
@@ -202,7 +202,9 @@ To better support numeric computing, standards bodies can do the following:
 
 1. __Value types__: add support for [value types][typed-objects-explainer]. Value types allow for creating custom types and enabling compiler optimizations. As with [typed objects][typed-objects-proposal], complex numbers are a prime example where value types are valuable, due to value comparison via structural equivalence.
 
-1. __Operator overloading__: add support for [operator overloading][operator-overloading]. Assuming [typed objects][typed-objects-proposal] and [value types][typed-objects-explainer], a natural extension is [operator overloading][operator-overloading]. Currently, element-wise vector operations and use cases such as matrix multiplication require either verbose OOP semantics (e.g., `M1.mul( M2 )` ) or functional equivalents requiring internal argument validation (e.g., `mul( M1, M2 )`. Contrast JavaScript to languages such as MATLAB or Julia which allow for compact expressions (e.g., `M1 .* M2`). The ability to write compact, and yet expressive, code would significantly broaden the appeal of JavaScript for numeric computing.
+1. __Operator overloading__: add support for [operator overloading][operator-overloading]. Assuming [typed objects][typed-objects-proposal] and [value types][typed-objects-explainer], a natural extension is [operator overloading][operator-overloading]. Currently, element-wise vector operations and use cases such as matrix multiplication require either verbose OOP semantics (e.g., `M1.mul( M2 )` ) or functional equivalents requiring internal argument validation (e.g., `mul( M1, M2 )`. Contrast JavaScript to languages such as MATLAB or Julia which allow for compact expressions (e.g., `M1 .* M2`). Furthermore, operator overloading has a general appeal beyond vector and matrix operations, such as enabling cleaner `Date` arithmetic. The ability to write compact, and yet expressive, code would significantly broaden the appeal of JavaScript for numeric computing.
+
+   __Aside__: vector and matrix operations will require additional operators. For instance, when multiplying matrices, need to distinguish between element-wise multiplication versus the matrix product. In languages such as MATLAB and Julia, element-wise operators include a period (e.g., `M1 .* M2` versus `M1 * M2`).
 
 1. __Big numbers__: add support for big [integers][julia-bigint], [rationals][golang-big], and [floats][julia-bigfloat]. In addition to cryptography and computing irrational numbers, arbitrary precision arithmetic is useful for algorithms involving double-precision floating-point numbers. Currently, lack of efficient, and relatively performant, big number support limits the scope and types of implemented algorithms, including for basic transcendental functions.
 
