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X = EFH = EFI = 60
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表达式18: "C" Subscript, 1 , Baseline equals "O" Subscript, 1 , Baseline
C
1
=
O
1
equals
=
0
0
18
表达式19: "C" Subscript, 2 , Baseline equals "R"
C
2
=
R
equals
=
5.7 6 1 9 1 2 1 7 7 4 1
5
.
7
6
1
9
1
2
1
7
7
4
1
19
表达式20: "D" Subscript, 1 , Baseline equals negative "B" Subscript, 1 , Baseline
D
1
=
−
B
1
equals
=
negative 4.5 0 4 8 4 4 3 3 9 5 1
−
4
.
5
0
4
8
4
4
3
3
9
5
1
20
表达式21: "D" Subscript, 2 , Baseline equals "B" Subscript, 2 , Baseline
D
2
=
B
2
equals
=
3.5 9 2 4 9 3 4 8 1 8 2
3
.
5
9
2
4
9
3
4
8
1
8
2
21
表达式22: "E" Subscript, 1 , Baseline equals negative "A" Subscript, 1 , Baseline
E
1
=
−
A
1
equals
=
negative 5.6 1 7 4 4 9 0 0 9 2 9
−
5
.
6
1
7
4
4
9
0
0
9
2
9
22
表达式23: "E" Subscript, 2 , Baseline equals "A" Subscript, 2 , Baseline
E
2
=
A
2
equals
=
negative 1.2 8 2 1 4 6 0 7 9 0 9
−
1
.
2
8
2
1
4
6
0
7
9
0
9
23
表达式24: "F" Subscript, 1 , Baseline equals negative "G" Subscript, 1 , Baseline
F
1
=
−
G
1
equals
=
negative 2.5
−
2
.
5
24
表达式25: "F" Subscript, 2 , Baseline equals "G" Subscript, 2 , Baseline
F
2
=
G
2
equals
=
negative 5.1 9 1 3 0 3 4 9 1 4 3
−
5
.
1
9
1
3
0
3
4
9
1
4
3
25
表达式26: "G" Subscript, 1 , Baseline equals "R" cosine left parenthesis, 90 minus 3 alpha , right parenthesis
G
1
=
R
c
o
s
9
0
−
3
α
equals
=
2.5
2
.
5
26
表达式27: "G" Subscript, 2 , Baseline equals "R" sine left parenthesis, 90 minus 3 alpha , right parenthesis
G
2
=
R
s
i
n
9
0
−
3
α
equals
=
negative 5.1 9 1 3 0 3 4 9 1 4 3
−
5
.
1
9
1
3
0
3
4
9
1
4
3
27
表达式28: "H" Subscript, 1 , Baseline equals "F" Subscript, 1 , Baseline plus "A" Subscript, "F" , Baseline cosine "G" Subscript, "F" "H" , Baseline
H
1
=
F
1
+
A
F
c
o
s
G
F
H
equals
=
0.7 9 1 6 0 8 8 9 1 2 1 7
0
.
7
9
1
6
0
8
8
9
1
2
1
7
28
表达式29: "H" Subscript, 2 , Baseline equals "F" Subscript, 2 , Baseline plus "A" Subscript, "F" , Baseline sine "G" Subscript, "F" "H" , Baseline
H
2
=
F
2
+
A
F
s
i
n
G
F
H
equals
=
3.1 9 5 5 7 9 1 8 3 3 3
3
.
1
9
5
5
7
9
1
8
3
3
3
29
表达式30: "I" Subscript, 1 , Baseline equals "F" Subscript, 1 , Baseline plus "B" Subscript, "F" , Baseline cosine left parenthesis, "G" Subscript, "F" "H" , Baseline plus 2 "X" , right parenthesis
I
1
=
F
1
+
B
F
c
o
s
G
F
H
+
2
X
equals
=
negative 13.6 0 9 4 1 3 4 9 0 3
−
1
3
.
6
0
9
4
1
3
4
9
0
3
30
表达式31: "I" Subscript, 2 , Baseline equals "F" Subscript, 2 , Baseline plus "B" Subscript, "F" , Baseline sine left parenthesis, "G" Subscript, "F" "H" , Baseline plus 2 "X" , right parenthesis
I
2
=
F
2
+
B
F
s
i
n
G
F
H
+
2
X
equals
=
negative 6.8 6 5 7 7 8 1 5 2 3 8
−
6
.
8
6
5
7
7
8
1
5
2
3
8
31
Graps
Graps
对学生隐藏该文件夹。
32
表达式33: "y" less than 40
y
<
4
0
33
表达式34: polygon left parenthesis, "A" , "F" , "H" , "E" , "I" , "F" , "A" , "B" , "F" , "B" , "C" , "D" , "E" , "F" , "G" , right parenthesis
p
o
l
y
g
o
n
A
,
F
,
H
,
E
,
I
,
F
,
A
,
B
,
F
,
B
,
C
,
D
,
E
,
F
,
G
34
Points
Points
对学生隐藏该文件夹。
35
55
技术支持
技术支持
O
A
B
C
D
E
F
G
H
I
|
|
||
||
ABCDEFG : Regular Heptagon
H, E, I : Collinear Points
X
X
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
功能
(
(
)
)
less than
<
greater than
>
4
4
5
5
6
6
times
×
| "a" |
|
a
|
,
,
less than or equal to
≤
greater than or equal to
≥
1
1
2
2
3
3
negative
−
A B C
StartRoot, , EndRoot
pi
π
0
0
.
.
equals
=
positive
+
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