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5.5.4 Infinity and Undefs

3A1006 ^1metaundef# ( meta → meta # )
Tests presence of undef in meta. # is the position of undef.
3A0006 ^2metaundef# ( meta2 meta1 → meta2 meta1 # )
Tests presence of undef in meta2 and meta1. # is the position of undef.
3A2006 ^metaundef ( → meta )
Returns undef meta.
3A4006 ^1metainf# ( meta → meta # )
Finds position of infinity in meta. Metas of length>2 are considered as finite meta.
3A3006 ^2metainf# ( meta2 meta1 → meta2 meta1 # )
Finds position of infinity in meta 2 and meta1. Metas of length>2 are considered as finite meta.
3A5006 ^metainftype ( meta → # )
Returns infinity type: 1 for +infinity, 2 for -infinity or 0 for unsigned.
3A6006 ^unsignedinf ( → meta )
Returns unsigned infinty.
3A7006 ^plusinf ( → meta )
Returns plus infinty.
3A8006 ^NDROPplusinf ( ob1..obn → meta )
Replaces meta by plus infinty.
3A9006 ^minusinf ( → meta )
Returns minus infinty.
3AA006 ^NDROPminusinf ( ob1..obn → meta )
Replace meta by minus infinty.



This document was generated by Carsten Dominik on May, 30 2005 using texi2html