" would look more compact and legible, this will allow to display the "*" symbol as a ".) can't control the simplification type of output.Įqu0 := ( a * x ^ 2 + b * x + c ) = 0 print( equ0 ) Įqu := subst ( equ, 'abs', nop ) print( equ ) Įqu1 := subst ( equ, x = x1 ) print( equ1 ) Įqu2 := subst ( equ2, "-b+", "-b+" ) print( equ2 ) What other calculator with CAS and original firmware can do the above? I think no one, only the HP-Prime with Xcas, simply because they (TI Texas Instruments, CASIO, Sharp, Numworks.