Texas Instruments TITANIUM TI-89 - Manual (Page 275)

Symbolic Manipulation 275
• Reformulate a problem to avoid fractional powers.
• Omit relatively small terms to find an approximation.
Special Constants Used in Symbolic Manipulation Special Constants Used in Symbolic Manipulation Special Constants Used in Symbolic Manipulation Special Constants Used in Symbolic Manipulation
The result of a calculation may include one of the special constants described in this
section. In some cases, you may also need to enter a constant as part of your entry.
true, false true, false true, false true, false
These indicate the result of an identity or a
Boolean expression.
x=x is true for
any value of x.
5<3 is false.