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## Re: need help to find an octave crash

 From: Ben Abbott Subject: Re: need help to find an octave crash Date: Tue, 25 Dec 2007 09:01:04 +0800

```
On Dec 25, 2007, at 4:57 AM, Doug Stewart wrote:

```
```I am running qtoctave on windows XP with octave 2.9.15

```
Would someone try this script and see if the new ver. of octave crashes
```or not.

My system has a seg fault

n=poly([ -11 -10 ])*10000

```
d=poly([ -2-3j -2+3j -2.1-3j -2.1+3j -3-3j -3+3j -3-3j -3+3j -5.5 -5 -5
```-1 ])

sys=tf(n,d)

sysout(sys)

step(sys,1,3,100)

Doug
```
```
```
No seg-fault for Octave 3.0 running Leopard on Intel. The final output to the console was
```
Input(s)
1: u_1

Output(s):
1: y_1

transfer function form:
10000*s^2 + 210000*s^1 + 1.1e+06
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
```
1*s^12 + 36.7*s^11 + (642.41 + 7.1054e-15i)*s^10 + (7104.3 + 1.7408e-13i)*s^9 + (55257 + 1.6165e-12i)*s^8 + (3.1819e+05 + 6.0645e-12i)*s^7 + (1.3899e+06 + 1.5277e-13i)*s^6 + (4.6356e+06 - 4.9027e-11i)*s^5 + (1.1701e+07 - 2.4102e-11i)*s^4 + (2.1745e+07 + 2.7057e-10i)*s^3 + (2.8077e+07 + 2.5011e-10i)*s^2 + 2.2285e+07*s^1 + 7.7664e+06
```
Ben

p.s. got a nice plot too!

```