Pro You can use Mathcad Professional to lock a set of equations. As Mathcad evaluates an expression it surrounds it with a green rectangle. To enter this number type 2 13i in a math region.
You place the calculations that you want to safeguard into that lockable area.
Plot the function f over the interval a b by setting the lowest tick mark value to a and the highest tick mark value to b. Find the arc length or surface area of a function over a span on which its derivative is continuous. Define the endpoints of an interval. In response to VladimirN 03-15-2015 0236 PM.