Hp Prime Graphing Wireless Calculator Manual do Utilizador Página 120

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116 Functions and commands
CAS menu
Press D to open the Toolbox
menus (one of which is the
CAS menu). The functions on
the CAS menu are those most
commonly used. Many more
functions are available. See
“Ctlg menu, beginning on
page 172.
Note that the Geometry functions appear on the App menu.
The result of a CAS command may vary depending on the
CAS settings. The examples in this chapter assume the default
CAS settings unless otherwise noted.
Algebra
Simplify Returns an expression simplified.
simplify(Expr)
Example:
simplify(4*atan(1/5)-atan(1/239))yields (1/4)*pi
Collect Collects like terms in a polynomial expression (or in a list of
polynomial expressions). Factorizes the results, depending on
the CAS settings.
collect(Poly) or collect({Poly1,
Poly2,..., Polyn})
Examples:
collect(x+2*x+1-4) returns 3*x-3
collect(x^2-9*x+5*x+3+1)
returns (x-2)^2
Expand Returns an expression expanded.
expand(Expr)
Example:
expand((x+y)*(z+1))gives y*z+x*z+y+x
Factor Returns a polynomial factorized.
factor(Poly)
Example:
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