LEXIBOOK GC500i Instruction Manual page 26

GB
2.3.4 Hyperbolic functions and inverse hyperbolic functions
The operations noted below cannot be performed in the BASE-N mode.
G
Example
sh 3.6 =
hyp
ch 1.23 =
hyp
th 2.5 =
hyp
ch1.5 –sh1.5
hyp
= ? (suite)
=e -1.5
Argsh30 =
hyp
Argch(20/15) =
hyp
(Argth0.88)/4 = hyp
Argsh2xArgch1.5 =
hyp
cos
Argsh(2/3)+Argth(4/5)
hyp
=
hyp
2.3.5 Coordinate transformation
Your calculator lets you convert between rectangular coordinates and polar coordinates.
G
Rectangular coordinates
Y
y
Calculation results are stored in variable memory I and variable memory J. Contents of
G
variable memory I are displayed first. To display contents of memory J, press
With polar coordinates, θ can be calculated within a range of –180° < θ < 180°. The calculation range
G
is the same for radians and grads.
The operations noted below cannot be performed in the BASE-N mode.
G
- 26 -
Key Operation
3.6
sin
EXE
1.23
cos EXE
2.5
tan
EXE
1.5 1.5
cos - hyp sin
in
Ans EXE
30
SHIFT sin -1
EXE
÷
cos -1 20 15
( )
SHIFT
÷
tan -1
0.88 4
SHIFT EXE
2
tan -1 x hyp
SHIFT SHIFT
-1 1.5
EXE
÷
2 3
sin -1 ( )
SHIFT
÷
4 5
tan -1 ( )
SHIFT
Polar coordinates
Y
P(x,y)
I J
θ
Pol r
Rec x y
Display Remark
18.28545536
1.856761057
0.986614298
0.22313016 chx + shx = e +x
EXE
-1.5
4.094622224
0.795365461
EXE
0.343941914
1.389388923
+
1.723757406
EXE
P(r, θ )
ALPHA J
Copyright L
EXIBOOK
.
EXE
2002