Answer Posted / harry

pure virtual function declared in the base class.
pure virtual function having intializer=0;
pure virtual function also know as do nothing function &
dummy function.
class contain atleast one pure virtual function.
object cannote be create of that class in which pure
virtual function are declared and that class are know as
abstract class.

Am studying basic c++ programming, have been given the following assignment. Design a linear program to calculate the maximum stress a material can withstand given a force and a diameter of a circle. To find the required area pi should be defined. Have most of the program sorted out but am at a loss as to how to show the calculations required. Can anyone help?

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