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Re: LaplaceTransform bug?

• To: mathgroup at smc.vnet.net
• Subject: [mg86334] Re: LaplaceTransform bug?
• From: dh <dh at metrohm.ch>
• Date: Sat, 8 Mar 2008 05:45:26 -0500 (EST)
• References: <fqqrgv$k2a$1@smc.vnet.net>

Hi Janus,

this seems to have been fixed in version 6.0.2.

Daniel





janus wrote:

> As far as I can tell, the bug illustrated by the example below has not

> been reported in this group before.

> Does anybody know wether it has been fixed in v6.0.1?

> 

> In[1]:= $Version

> 

> Out[1]= "6.0 for Mac OS X x86 (32-bit) (April 20, 2007)"

> 

> In[2]:= Clear[a, b, t, s];

> LaplaceTransform[E^(a t) E^(b t), t, s] // InputForm

> 

> Out[3]//InputForm=

> E^(b*t)/(-a + s)

> 

> In[4]:= Clear[a, b, t, s];

> LaplaceTransform[E^((a + b) t), t, s] // InputForm

> 

> Out[5]//InputForm=

> (-a - b + s)^(-1)

>