Return the list of calculations that can be done on an algebraic expression.
see_possible_calculations(expression)
This function returns the list of calculations that can be applied to an algebraic expression, by entering `4/5`,
it is for example possible to obtain the
list of calculations that can be applied to the fraction `4/5`,
calculation of the numerator, denominator, ...
By entering the expression `x^2-x-1`, it is possible to obtain the
list of calculations that can be done on the polynomial function `x^2-x-1`
: calculation of the derivative, of a primitive, of the discriminant, of the roots, ...