This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.1)


replaces approximate real numbers in expr that are close to zero by the exact integer 0.
  • Chop[expr, delta] replaces numbers smaller in absolute magnitude than delta by 0.
  • Chop uses a default tolerance of 10-10.
New in 1