Discriminant Program
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I'm making a program that will calculate the discriminant of a quadratic and displays the number of roots based on whether the result is positive, negative, or zero. However, it will only display 'two roots' when that case is satisfied, and nothing else when the cases are supposed to display 'one root' or 'no roots'.

Here is my code:


Code:
 Prompt A, B, C
B^2 - 4AC→X
If X > 0
Disp "TWO ROOTS"
If X = 0
Disp "ONE ROOT"
Else
Disp "NO ROOTS"
End


Help please?
You forgot the "Then" which is needed for doing If Else or multi line If's


Code:
 Prompt A, B, C
B^2 - 4AC→X
If X > 0
Disp "TWO ROOTS"
If X = 0
Then
Disp "ONE ROOT"
Else
Disp "NO ROOTS"
End

"Always code as if the person who will maintain your code is a maniac serial killer that knows where you live" -Unknown

"If you've done something right no one will know that you've done anything at all" -Futurama

<Michael_V> or create a Borg collective and call it The 83+
<Michael_V> Lower your slide cases and prepare to be silent linked. Memory clears are futile.
Thank you! However, I changed it to this


Code:
 Prompt A, B, C
B^2 - 4AC→X
If X > 0
Disp "TWO ROOTS"
If X = 0
Then
Disp "ONE ROOT"
If X < 0
Disp "NO ROOTS"
End


because every time I did a case where X was greater than zero, it displayed both "TWO ROOTS" and "NO ROOTS". But it still doesn't display anything for the case X < 0, although it works for the other cases.
Try This:


Code:
 Prompt A, B, C
B^2 - 4AC→X
If X > 0
Then
Disp "TWO ROOTS"
Else
If X = 0
Then
Disp "ONE ROOT"
Else
Disp "NO ROOTS"
End
End

"Always code as if the person who will maintain your code is a maniac serial killer that knows where you live" -Unknown

"If you've done something right no one will know that you've done anything at all" -Futurama

<Michael_V> or create a Borg collective and call it The 83+
<Michael_V> Lower your slide cases and prepare to be silent linked. Memory clears are futile.
It might help to look at it with a bit of indention:


Code:
Prompt A, B, C 
B^2 - 4AC→X 
If X > 0 
  Disp "TWO ROOTS" 
If X = 0
Then 
  Disp "ONE ROOT" 
  If X < 0 
    Disp "NO ROOTS" 
End


This means that, when X = 0, then it displays "ONE ROOT" and then checks if X < 0. But, because the If statement evaluated to true, then we know that X is not less than 0, and can never be. Here is Jonimus' with indention:


Code:
Prompt A, B, C 
B^2 - 4AC→X 
If X > 0 
Then
  Disp "TWO ROOTS" 
Else
  If X = 0 
  Then 
    Disp "ONE ROOT" 
  Else 
    Disp "NO ROOTS" 
  End
End
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It works! Thank you so much!
I thought I would make some optimisations:

Code:

Prompt A,B,C
B^2-4AC
If not(Ans
Disp "ONE ROOT
If Ans>0
Disp "TWO ROOTS
If Ans<0
Disp "NO ROOTS

This isn't as optimised as it could be, but it is still easy enough to follow, I think. To complicate things a little:

Code:

Prompt A,B,C
ClrHome
B^2-4AC
(Ans≥0)+(Ans>0
Output(1,1,Ans
Output(1,3,"ROOT
If Ans≠1
Ouput(1,7,"S


Note: For whatever reason, the 'squared' symbol isn't allowed in a post, so I replaced them with ^2.
The number of real roots can be given by: 1+tanh(E9(B²-4AC
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