Texas Instruments TITANIUM TI-89 - Manual (Page 82)

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Symbolic Manipulation Symbolic Manipulation Symbolic Manipulation Symbolic Manipulation
Solve the system of equations 2x N 3y = 4 and Lx + 7y = L12. Solve the first equation so
that x is expressed in terms of y. Substitute the expression for x into the second
2. Convert 345 degrees to Radian angle
measure.
You can enter “ ú Rad ” on the entry line by
selecting “ ú Rad ” from the Catalog menu,
or from the Math menu by pressing 2
I
and selecting
2:angle, B: ú Rad .
Press 3 D D D B 2 ¸ 345 2
v 2 I 2 j B
¸
Note: You can also use у,ф, or
G
to
override the angle mode setting
temporarily.
Steps and keystrokes Display