Mathematica

Enter the command Limit[. Limit Left Square

Enter the desired function, then a comma.

Enter the variable in the function, then −Minus>approaches, then the value that variable approaches, then ]Close the menu.

Press SHIFTthe Shift key+ENTERthe Enter key.

Enter f[t_]:=f left square bracket t subscript right square bracket colon equals and then the desired integrand function, with t as the variable.

Press ENTERthe Enter key.

Enter the command Integrate[Integrate.

Enter f[t]f left square bracket t right square bracket, {t, a, b}]t, a, b right square bracket, replacing a and b with the lower and upper limits of integration, respectively.

Press SHIFTthe Shift key+ENTERthe Enter key.

Enter N[%]N left square bracket percent sign right square bracket if you wish to numerically evaluate the output.

Press SHIFTthe Shift key+ENTERthe Enter key.