A big part of the oft-overlooked notion of Information Architecture are the twin concepts of Source of Truth and System of Record. Many systems mix or conflate the two or don't consider them at all, other than subconsciously when wrestling with issues of code duplication (split SoT).
If the result of a calculation is that important to the functioning of your code, then having three implementations in multiple languages is just madness. You need to pick one to believe, or constantly deal with random catastrophes. Personally I enjoy very much not being woken up at 7 am EST to solve production issues. Almost as much as I hate other people getting kudos for problems that we should have not signed up for in the first place. Arsonist-firefighters exist in every dark corner of the programming world, and in much greater numbers than actual arsonist-firefighters.
From a technology selection standpoint, all of this info is extremely important, because it will inform both my choice of tools and my immediate task list to deal with any answers I don't like. But if you're wrestling with this every day, you've already fucked up.
If the result of a calculation is that important to the functioning of your code, then having three implementations in multiple languages is just madness. You need to pick one to believe, or constantly deal with random catastrophes. Personally I enjoy very much not being woken up at 7 am EST to solve production issues. Almost as much as I hate other people getting kudos for problems that we should have not signed up for in the first place. Arsonist-firefighters exist in every dark corner of the programming world, and in much greater numbers than actual arsonist-firefighters.
From a technology selection standpoint, all of this info is extremely important, because it will inform both my choice of tools and my immediate task list to deal with any answers I don't like. But if you're wrestling with this every day, you've already fucked up.