[swift-evolution] Epic: Typesafe calculations

[Matt Whiteside]

That was my thinking when I wrote it, but I’m not sure exactly what the limits would be.  For example, the product of 2 invertible matrices is an invertible matrix, giving you another way to construct one.

Matt


> On Jan 13, 2016, at 09:56, Thorsten Seitz <tseitz42 at icloud.com> wrote:
> 
> 
> Am 12.01.2016 um 23:49 schrieb Matt Whiteside via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>>:
> 
>> struct InvertibleMatrix: SquareMatrix where determinant() != 0 
>> //                       ^~~ 'restriction’ clause, i.e., not inheritance;
>> //                       determinant() is executed at compile time,
>> //                       since `entries` is a constexpr
> 
> Wouldn't that only work for literal matrices?
> 
> -Thorsten 

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