Guest Observer Facilities & Science
Centers |
NASA Archives |
|
Next: A2tn
Up: COD Command Summary
Previous: ?
Duplicate the number at the top of the stack only if it is non-zero.
Examples:
5.0 0.0
COD> ?DUP
5.0 0.0
COD> 1.0 ?DUP
5.0 0.0 1.0 1.0
Web Page Maintained by: Dr. Lawrence E. Brown elwin@redshift.gsfc.nasa.gov
|