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.
|