LEXIBOOK GC1000i, Инструкция по эксплуатации, Страница: 26 / 75

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