Lines Matching +refs:sign +refs:oddfun

218 @item evenfun, oddfun
459    oddfun         evenfun         posfun
1177 When @code{assume_pos} is @code{true} and the sign of a parameter @var{x}
1181 @code{sign} and @code{asksign (@var{x})} return @code{true}.
1190 @code{sign} and @code{asksign} attempt to deduce the sign of expressions
1191 from the sign of operands within the expression.
1219 The @code{assume_pos_pred} function is called by @code{sign} and @code{asksign}
1235 @c sign (a);
1236 @c sign (a[1]);
1250 (%i3) sign (a);
1252 (%i4) sign (a[1]);
1580 @anchor{sign}
1581 @deffn {Function} sign (@var{expr})
1583 Attempts to determine the sign of @var{expr} on the basis of the facts in the