LN, LOG, LOG10, EXP – DAX Guide
LN: Returns the natural logarithm of a number.
https://dax.guide/ln/
LOG: Returns the logarithm of a number to the base you specify.
https://dax.guide/log/
LOG10: Returns the base-10 logarithm of a number.
https://dax.guide/log10/
EXP: Returns e raised to the power of a given number.
https://dax.guide/exp/