表达式4: Start integral from "a" to "b" , end integral, "f" left parenthesis, "t" , right parenthesis "d" "t"∫baftdt
equals=
0.6 6 6 6 6 6 6 6 6 6 6 70.666666666667
4
表达式5: "a" equals 0a=0
negative 10−10
1010
5
表达式6: "b" equals 2b=2
negative 10−10
1010
6
Visualize the area under the curve:
7
表达式8: left brace, "f" left parenthesis, "x" , right parenthesis greater than 0 : 0 , "f" left parenthesis, "x" , right parenthesis less than 0 : "f" left parenthesis, "x" , right parenthesis , right brace less than "y" less than left brace, "f" left parenthesis, "x" , right parenthesis greater than 0 : "f" left parenthesis, "x" , right parenthesis , "f" left parenthesis, "x" , right parenthesis less than 0 : 0 , right brace left brace, "a" less than "x" less than "b" , "b" less than "x" less than "a" , right bracefx>0:0,fx<0:fx<y<fx>0:fx,fx<0:0a<x<b,b<x<a
