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16-16 Step-by-Step Examples
DEF command to it. Press to complete the
definition.
To calculate the real part of
the expression, apply the
IM command (available on
the COMPLEX submenu of
the MATH menu) to the
stored variable M.
Press to get the
result at the right:
Finally, define the result as
Y(t) in the same way that
you defined X(t): by firstly
adding Y(t) = to the
expression (as shown at the
right) and then applying the DEF command.
We have now found the coordinates of M in terms of t.
Part 2 To find an axis of symmetry for Γ, calculate and
by typing:
X
t
Press to highlight the
expression.
Then press to
produce the result at the
right:
In other words,
Now type Y
t
Press to highlight the
expression.
xt–()
yt–()
xt–() xt()=
hp40g+.book Page 16 Friday, December 9, 2005 1:03 AM