PRODUCTS
Mathematica
Mathematica for Students
Mathematica for the Classroom
Mathematica Personal Grid Edition
grid
Mathematica
web
Mathematica
Mathematica Player
(free download)
Mathematica Player Pro
Wolfram
Workbench
Mathematica
Applications
PURCHASE
Online Store
Other Ways to Buy
Volume & Site Licensing
Contact Sales
Software
Service
Upgrades
Training
Books
FOR USERS
All User Resources
Product Registration
Technical Support
Customer Service
Developer Support
Does My Site Have a License?
Free Seminars
Certified Training
Documentation & Examples
Tutorial Screencasts
Video Gallery
Demonstrations Project
Education Portal
Student Resources
COMPANY
About Wolfram Research
News & Events
Wolfram Blog
Employment Opportunities
History of
Mathematica
Stephen Wolfram's Home Page
Contact Us
OUR SITES
Demonstrations Project
MathWorld
Integrator
Wolfram Functions Site
Wolfram Blog
Mathematica Journal
Wolfram Library Archive
Wolfram
Tones
Wolfram Science
Stephen Wolfram
DOCUMENTATION CENTER SEARCH
Mathematica
>
Numerical Functions
>
Built-in
Mathematica
Symbol
Numerical Precision
Tutorials »
|
Rationalize
Round
Clip
Accuracy
Floor
IntegerPart
N
Precision
SetPrecision
See Also »
|
Numerical Functions
Precision & Accuracy Control
More About »
Chop
Chop
[
expr
]
replaces approximate real numbers in
expr
that are close to zero by the exact integer
0
.
MORE INFORMATION
Chop
[
expr
,
delta
]
replaces numbers smaller in absolute magnitude than
delta
by
0
.
Chop
uses a default tolerance of
10
-10
.
Chop
works on both
Real
and
Complex
numbers.
EXAMPLES
CLOSE ALL
Basic Examples
(1)
Zero out elements that are very close to 0:
In[1]:=
Out[1]=
In[2]:=
Out[2]=
Scope
(2)
Applications
(2)
Properties & Relations
(1)
SEE ALSO
Rationalize
Round
Clip
Accuracy
Floor
IntegerPart
N
Precision
SetPrecision
TUTORIALS
Numerical Precision
MORE ABOUT
Numerical Functions
Precision & Accuracy Control
New in 1
© 2008 Wolfram Research, Inc.