title: Delphi, using numbers in edits
body: <p>I was wondering if there is a component like the 'edit', but just for numbers so I can use the <code>.value</code> function in my code.
  My textbook says I must make a program, that when the user enters a number and clicks the execute button, the results of the functions must be determined. 
  The functions are: Trunc, round, frac, sqr and sqrt.
  I have to enter the value into, what looks like an 'edit', but whenever I use the <code>.value</code> in my code, it gives me an error saying :<code>Undeclared identifier: 'value'</code>. Although it works when I use a 'SpinEdit'.
  Forgive me for being really thick, I do have a severe chest and sinus infection with a fairly bad fever, so my mind is somewhere else at the moment.
  Thanks!
  Oh, and by the way, I have also used the 'MaskEdit' component but it still gives me the same error</p>