Originally Posted By: paul
c is a constant but the computer does not know
that c is a constant.


v , c , t and t1 = 4 variables.




C is a constant. You set it programmatically and then never change it. In many programming languages you can define C as a constant and you can't change it.

v and t are independent variables. They are the input values to the calculation and can be set to any value. Except of course that v cannot be greater than C.

t1 is a dependent variable. Its value depends on the outcome of the calculation performed using v and t.

You know, there is at least one site on the web where you can study math and physics for free. Khan Academy

If you studied that you might actually understand just what mistakes you are making.

Bill Gill

C is not the speed of light in a vacuum.
C is the universal speed limit.