Hello Chris,
thanks for your quick reply. It will helps to understand the whole thing and will help me to create my own answer test if necessary.
thanks for your quick reply. It will helps to understand the whole thing and will help me to create my own answer test if necessary.
The main cases I would like to cover are
array('CompSquare', 'x', '3/2*(x-1)^2+1', '3/2*(x-1)^2+1', 1, 'ATCompSquare_true.', ''),
array('CompSquare', 'x', '3*(x-1)^2/2+1', '3/2*(x-1)^2+1', 1, 'ATCompSquare_true.', ''),
array('CompSquare', 'x', '-3/2*(x-1)^2+1', '-3/2*(x-1)^2+1', 1, 'ATCompSquare_true.', ''),
array('CompSquare', 'x', '-3*(x-1)^2/2+1', '-3/2*(x-1)^2+1', 1, 'ATCompSquare_true.', ''),
array('CompSquare', 'x', '1-3*(x-1)^2/2', '-3/2*(x-1)^2+1', 1, 'ATCompSquare_true.', '')
array('CompSquare', 'x', '3*(x-1)^2/2+1', '3/2*(x-1)^2+1', 1, 'ATCompSquare_true.', ''),
array('CompSquare', 'x', '-3/2*(x-1)^2+1', '-3/2*(x-1)^2+1', 1, 'ATCompSquare_true.', ''),
array('CompSquare', 'x', '-3*(x-1)^2/2+1', '-3/2*(x-1)^2+1', 1, 'ATCompSquare_true.', ''),
array('CompSquare', 'x', '1-3*(x-1)^2/2', '-3/2*(x-1)^2+1', 1, 'ATCompSquare_true.', '')
(Is this what you are thinking of?)
I don't want to accept the version with the fraction factored out.
(The reason why I tried it out, is that as an example comp_square(2*x^2+4*x+4,x) evaluates to 2*((x+1)^2+1). But I now realized that the anwer test CompletedSquare does not accept this expression for 2*(x+1)^2+2 anyways.)
Stephan