Problem is that these matrix instructions are way more useful that the use cases they've catered for in their library. You could have a library that has a func

Problem is that these matrix instructions are way more useful that the use cases they've catered for in their library. You could have a library that has a function call for each matrix instruction, but that's not worth the penalty of a function call. If your game, graphics software, physics simulation, render farm, video encoder etc can get a boost from these commands, it should be permitted, not just the software that Apple makes. Not sure why people are hostile to this.