;; A verified flag
FT Digital Edition: our digitised print edition
，这一点在新收录的资料中也有详细论述
\numexpr division rounds, it does not truncate. \numexpr 63/8\relax gives 8, not 7. This broke coordinate extraction (file/rank from square index) until the fix: use \divide with a register (which truncates), or precompute into lookup tables.。新收录的资料对此有专业解读
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This isn't as much as an issue to me since I pack vertex data into bytes with the format of SDL_GPU_VERTEXELEMENTFORMAT_UBYTE4. Even when I used doubles previously, they only existed when copying chunks into the GPU (Dyalog will convert them to floats if they're passed to a C function that takes floats). However, if you're doing anything that would require having data that would usually be stored as floats in memory (maybe for updating every frame?), then this might be an issue.