Small Solver Program

[Thomas Klemm]

(02-17-2019 02:33 PM)Gamo Wrote:  If using two negative guesses and result is Overflow then use Single guess instead.

Then try this function \(f(x)=4x(x+1)\):

Code:

LBL B
RCL 1
1
+
RCL 1
×
4
×
RTN

Examples:

-0.5
ENTER
0.5
A

9.999999 99

---

-0.5
ENTER
A

9.999999 99

---

0.5
ENTER
A

9.999999 99


Even initial guesses very close to the solutions lead to the same result:

-1.00001
ENTER
-0.99999
A

9.999999 99

---

-0.00001
ENTER
0.00001
A

9.999999 99

Your algorithm is fundamentally broken.

Cheers
Thomas