gives True if basic symbolic and numerical methods suggest that expr has value zero, and gives False otherwise.
Details and Options
- The general problem of determining whether an expression has value zero is undecidable; PossibleZeroQ provides a quick but not always accurate test.
- With the setting Method->"ExactAlgebraics", PossibleZeroQ will use exact guaranteed methods in the case of explicit algebraic numbers.
Basic Examples (1)
Test whether a numeric expression is zero:
Test whether a symbolic expression is likely to be identically zero:
Properties & Relations (1)