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表达式17: "y" equals "x" minus 4 left brace, 7.5 less than "x" less than 11 , right brace
y
=
x
−
4
7
.
5
<
x
<
1
1
17
表达式18: "x" equals 11 left brace, 1 less than "y" less than 7 , right brace
x
=
1
1
1
<
y
<
7
18
表达式19: "x" equals 15 left brace, 1 less than "y" less than 15 , right brace
x
=
1
5
1
<
y
<
1
5
19
表达式20: "y" equals 1 left brace, 11 less than "x" less than 15 , right brace
y
=
1
1
1
<
x
<
1
5
20
表达式21: "y" equals 20 left brace, negative 15 less than "x" less than 15 , right brace
y
=
2
0
−
1
5
<
x
<
1
5
21
表达式22: "x" equals negative 15 left brace, 15 less than "y" less than 20 , right brace
x
=
−
1
5
1
5
<
y
<
2
0
22
表达式23: "x" equals 15 left brace, 15 less than "y" less than 20 , right brace
x
=
1
5
1
5
<
y
<
2
0
23
表达式24: "y" equals negative "x" plus 18 left brace, 10.5 less than "y" less than 13 , right brace
y
=
−
x
+
1
8
1
0
.
5
<
y
<
1
3
24
表达式25: "y" equals negative "x" plus 3 left brace, 10.5 less than "y" less than 13 , right brace
y
=
−
x
+
3
1
0
.
5
<
y
<
1
3
25
表达式26: "y" equals "x" plus 3 left brace, 10.5 less than "y" less than 13 , right brace
y
=
x
+
3
1
0
.
5
<
y
<
1
3
26
表达式27: "x" equals 10 left brace, 13 less than "y" less than 18 , right brace
x
=
1
0
1
3
<
y
<
1
8
27
表达式28: "y" equals negative "x" plus 18 left brace, 10.5 less than "y" less than 13 , right brace
y
=
−
x
+
1
8
1
0
.
5
<
y
<
1
3
28
表达式29: "y" equals "x" plus 18 left brace, 10.5 less than "y" less than 13 , right brace
y
=
x
+
1
8
1
0
.
5
<
y
<
1
3
29
表达式30: "x" equals 5 left brace, 13 less than "y" less than 18 , right brace
x
=
5
1
3
<
y
<
1
8
30
表达式31: "x" equals negative 5 left brace, 13 less than "y" less than 18 , right brace
x
=
−
5
1
3
<
y
<
1
8
31
表达式32: "x" equals negative 10 left brace, 13 less than "y" less than 18 , right brace
x
=
−
1
0
1
3
<
y
<
1
8
32
表达式33: "y" equals 18 left brace, 5 less than "x" less than 10 , right brace
y
=
1
8
5
<
x
<
1
0
33
表达式34: "y" equals 18 left brace, negative 10 less than "x" less than negative 5 , right brace
y
=
1
8
−
1
0
<
x
<
−
5
34
35
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"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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