Casio fx-FD10 Pro, Руководство пользователя, Страница: 217 / 222

α
-13
Program name: ANGLE
Function: Bearing Angle
X
A
l
( X
P
, Y
P
)
( X
A
, Y
A
)
Input:
( X
A
, Y
A
), ( X
P
, Y
P
)
Output:
α
, l
Formula:
( l ,
α
) = Pol ( X
P
– X
A
, Y
P
– Y
A
)
Program name: TRAVERSE
Function: Traverse Calculation
A
B
A
l
l
O
( X
O
, Y
O
)
( X
A
, Y
A
)
( X
P
, Y
P
)
O
X
Input:
( X
A
, Y
A
),
α
O
,
β
, l
Output:
( X
P
, Y
P
),
α
Formula:
α
=
α
O
– 180° +
β
X
P
= l cos
α
+ X
A
Y
P
= l sin
α
+ Y
A
Program name: INVERSE
Function: Inverse Calculation
A
B
l
l
O
( X
O
, Y
O
)
( X
A
, Y
A
)
( X
P
, Y
P
)
A
O
X
Input:
( X
A
, Y
A
), ( X
O
, Y
O
), ( X
P
, Y
P
)
Output:
l
O
,
α
O
, l ,
α
,
β
Formula:
( l
O
,
α
O
) = Pol ( X
A
– X
O
, Y
A
– Y
O
)
( l ,
α
) = Pol ( X
P
– X
A
, Y
P
– Y
A
)
β
=
α
–
α
O
+ 180°
Program name: DECENTER
Function: Decentering
α
S
′
A
P
′
P
e
S
γ
Input:
α
, e , S
′
Output:
γ
, S
Formula:
γ
= tan
–1
S = S a
2
+ e
2
– 2 S a e cos
Program name: MID-ORD
Function: Middle Ordinate
M
1
BC
EC
R
M
2
I
2
I 4
I
Input:
I , R
Output:
M
1
, M
2
Formula:
M
1
= R
I
2
¥
§
´
¶
1 – cos
M
2
= R
I
4
¥
§
´
¶
1 – cos
e sin
S a – e cos
¥
§
´
¶
e sin
S a – e cos
¥
§
´
¶