表达式5: "f" left parenthesis, "x" , right parenthesis equals StartFraction, 1 Over "s" StartRoot, 2 pi , EndRoot , EndFraction "e" Superscript, negative 1 half left parenthesis, StartFraction, "x" minus "m" Over "s" , EndFraction , right parenthesis squared , Baselinefx=1s2πe−12x−ms2
5
表达式6: "a" equals negative 1000a=−1000
negative 1000−1000
10001000
6
表达式7: "b" equals 0.9 2b=0.92
negative 1000−1000
10001000
7
表达式8: Start integral from "a" to "b" , end integral, "f" left parenthesis, "x" , right parenthesis "d" "x"∫bafxdx
