So obviously Calculators are banned but calculations are allowed As only IGT matters is it allowed to pause the game to do Calculations maybe with help of Pen and paper (with Cam footage if asked would be fair i think) or is it straight against the rules? I think i heard of a case were someone paused for Calculations and it was added by mods to IGT

yes, zylenox had wr but his time paused while doing math was added.