特別命令或符號
|
PRGM 模式中的按法
|
特別命令或符號
|
PRGM 模式中的按法
|
?
|
SHIFT 3 1
|
ClrMemory
|
SHIFT 9 1
|
:
|
SHIFT 3 3 or EXE
|
ClrStat
|
SHIFT 9 1
|
◢
|
SHIFT 3 4
|
Goto
|
SHIFT 3 ► ► ► 1
|
→
|
SHIFT 3 2
|
Lbl
|
SHIFT 3 ► ► ► 2
|
A
|
ALPHA (-)
|
X
|
ALPHA )
|
B
|
ALPHA 。,,,
|
Y
|
ALPHA ,
|
C
|
ALPHA hyp
|
M
|
ALPHA M+
|
D
|
ALPHA sin
|
=>
|
SHIFT 3 ► 1
|
=
|
SHIFT 3 ► 2
|
|
|
這個程式可以根據輸入來計算在一個三角形中
Base on the date input, this program can calculate
(1) 已知三邊,其餘三個角的大小,或 Given that 3 sides known, we can calculate 3 angles, or
(2) 已知兩邊及夾角,第三邊的長度及其餘二角
Given that 2 sides and included angle known ,we can calculate the third side and other 2 angles
程式組
|
86 bytes
|
1
|
Mem
clear : ? → A : ? → B : ? → C : ? → D :
|
2
|
D
=> √( B2 + C2 –
2BC cos D → A ◢
|
3
|
D = 0
=> cos-1 (( B2
+ C2 – A2 ) ÷(2BC) → D ◢
|
4
|
cos-1 (( C2 + A2 – B2
) ÷ (2CA → X ◢ πr
– D – X → Y
|
|
MODE
MODE MODE 2
|
(πr press π ( SHIFT
EXP ), and then press SHIFT Ans
2。)
example 1:a = 8, b = 9, c = 10 [ 已知三邊 Given that 3 sides known
]
Press Prog,再按 1 至 4 選擇輸入程式位置 and then press
8 EXE 9 EXE 10 EXE 再按 EXE
(不輸入第四個數,表示選擇輸入三邊 don't ENTRY the fourth number, it means we choose to entry 3 sides )
顯示 shown 49.458 ( A = 49.458° )
再按 EXE press EXE again 顯示 shown 58.752 ( B = 58.752° )
再按
EXE press EXE again
顯示 shown
71.790 ( C = 71.790° )
example 2:b = 4, c = 6, A = 50°[Given that 2 sides and included angle known
]
Press Prog,再按 1 至 4 選擇輸入程式位置
EXE
( 不輸入第一個數,表示選擇輸入兩邊及夾角don't ENTRY the first number, it means we choose to entry 2 sides and included angle)
再按 and press 4 EXE 6 EXE 50 EXE 顯示 shown 4.598 ( a
= 4.598 )
再按
EXE press EXE again
顯示 shown
41.785 ( B = 41.785° )
再按
EXE press EXE again
顯示 shown
88.215 ( C = 88.215° )