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5.11 Sign Tables

237006 ^SIGNE ( symb → sign )
Compute the sign table of the expression with respect to the current variable. Internal version of the UserRPL command SIGNTAB.
0DC007 ^SIGNE1ext ( expr → sign )
Sign table of a polynomial or rational expression.
0DD007 ^SIGNEext
0DE007 ^SIGNUNDEF ( → sign )
Returns undefined sign table.
0DF007 ^SIGNPLUS ( → sign )
Returns always positive sign table.
0E0007 ^SIGNMOINS ( → sign )
Returns always negative sign table.
0E1007 ^SIGNELN ( sign → sign )
Returns ln of a sign table.
0E2007 ^SIGNEEXP ( sign → sign' )
Returns exp of a sign table.
0E3007 ^SIGNESIN ( sign → sign' )
Returns sin of a sign table.
0E4007 ^SIGNECOS ( sign → sign' )
Returns cos of a sign table.
0E5007 ^SIGNETAN ( sign → sign' )
Returns tan of a sign table.
0E6007 ^SIGNEATAN ( sign → sign' )
Returns atan of a sign table.
0E7007 ^SIGNESQRT ( sign → sign' )
Returns sqrt of a sign table.
0E8007 ^SUBSIGNE ( sign min max → sign' )
Truncates a sign table.
0E9007 ^SIGNERIGHT ( sign ob → sign' )
Places ob at the end of a sign table.
0EA007 ^SIGNELEFT ( sign ob → sign' )
Places ob at the beginning of a sign table.
0EB007 ^>SIGNE ( sign → sign' )
Prepends { -infinity ? } to a sign table.
0EC007 ^SIGNE> ( sign → sign' )
Appends { ? +infinity } to a sign table.
0ED007 ^SIGNMULText ( sign1 sign2 → sign' )
Multiplies two sign tables.
0DB007 ^POSITIFext ( ob → ob flag )
Tries to determine if ob is positive. In internal representation, this depends on increaseflag so that x-1 is positive if increaseflag is cleared, negative otherwise, because x is assumed to tend to +infinity or zero.
0EE007 ^ZSIGNECK ( ob → ob flag )
Returns sign of an expression. Error if unable to find sign.
0F0007 ^ZSIGNE ( ob → zint )
Returns sign of an expression. zint=1 for +, -1 for -, 0 for undef. Expression does not need to be polynomial/rational.
0F1007 ^zsigne ( meta → zint )
Returns sign of a meta symbolic. zint=1 for +, -1 for -, 0 for undef. Expression does not need to be polynomial/rational.
07D007 ^CHECKSING ( symb inf sup vx → symb inf sup vx flag )
Checks for singularities in expr.


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