[WP 34s] Trouble finding root - (solved)

[RMollov]

(06-29-2015 01:09 AM)Marcio Wrote:  Hello all,

I am having troubles finding the root of the following equation:

\[0.05=\frac{x\times coth(x) - 1}{10x\times coth(10x) - 1}\]

to which I created the following program:

Code:


LBL 01
#10
*
ENTER
TANH
/
1
-
x<>y
ENTER
TANH
/
1
-
x<>y
/
#005
#100
/
-
END

1
5
SLV 01

The 34s will complain there is a domain error.

Hope I am missing something.

Thanks

Marcio

EDIT: Found the error. Problem solved!

You could save a few steps:

Code:

LBL 01
XEQ 00
X<>Y
SDL 001
ENTER
XEQ 00
/
#005
SDR002
-
RTN
LBL 00
TANH
/
1
-
END