- Question about Ti-83/4 BASIC (Not CE)
- 26 Apr 2020 08:37:46 pm
- Last edited by Izder456 on 26 Apr 2020 09:25:15 pm; edited 1 time in total

Hej all! (Sweden Joke)

I recently optimised my Ti-85 Programme with a function (see var "Q")

Note : D is digits of precision

How would I do the same thing with sequential functions or y-vars of any type (on the Ti-83+)?

like...the u, v , and w things.

EDIT :

With some help with people in SAX, I got this code :

However, I get garbage output.

for A=1 : B=2 : C=-3 : D=0 :

I get : x={7,-9},

When I should get : x={1,-3}

I recently optimised my Ti-85 Programme with a function (see var "Q")

**Code:**```
ClLCD
```

RectC

Q=(~B+{1,~1}*sqrt(B^^2-4*A*C)/(2*A

Disp "Quadratic","ax^^2+bx+c"

Prompt A,B,C,D

round(Q,D

Disp Ans(1

Disp Ans(2

Note : D is digits of precision

How would I do the same thing with sequential functions or y-vars of any type (on the Ti-83+)?

like...the u, v , and w things.

EDIT :

With some help with people in SAX, I got this code :

**Code:**```
ClrHome
```

a+bi

Disp "Quadratic","ax^^2+bx+c

Prompt A,B,C,D

round((~B+{1,~1}sqrt(B^^2-4AC))/2/A,D

Disp Ans(1),Ans(2

However, I get garbage output.

for A=1 : B=2 : C=-3 : D=0 :

I get : x={7,-9},

When I should get : x={1,-3}