Symbolic-View Variables - HP 39gs User Manual

Symbolic-view variables

Angle
All Aplets
F1...F9, F0
Function
X1, Y1...X9,Y9
X0,Y0
Parametric
R1...R9, R0
Polar
U1...U9, U0
Sequence
E1...E9, E0
Solve
Programming
Sets the angle mode.
From Symbolic Setup, choose Degrees, Radians, or
Grads for angle measure.
or
In a program, type
1 Angle —for Degrees.
2 Angle —for Radians.
3 Angle—for Grads.
Can contain any expression. Independent variable is X.
Example
'SIN(X)'
You must put single quotes around an expression to keep
it from being evaluated before it is stored. Use
to type the single quote mark.
CHARS
Can contain any expression. Independent variable is T.
Example
'SIN(4*T)'
X1(T)
Can contain any expression. Independent variable is θ.
Example
'2*SIN(2*θ)'
Can contain any expression. Independent variable is N.
Example
RECURSE (U,U(N-1)*N,1,2)
Can contain any equation or expression. Independent
variable is selected by highlighting it in Numeric View.
Example
'X+Y*X-2=Y'
F1(X)
Y1(T):'2*SIN(6*T)'
R1(θ)
E1
U1(N)
18-39