https://support.microsoft.com/en-us/office/floor-math-function-c302b599-fbdb-4177-ba19-2c2b1249a2f5 https://support.microsoft.com/en-us/office/ceiling-math-function-80f95d2f-b499-4eee-9f16-f795a8e306c8 Also - add missing test cases for legacy floor and math functions
I have added changes today for this