Re: fourier transform and bug reporting
- To: mathgroup at smc.vnet.net
- Subject: [mg17558] Re: fourier transform and bug reporting
- From: lucas <lucas at iquanta.com>
- Date: Fri, 14 May 1999 01:13:19 -0400
- Organization: Rutgers University
- References: <7grgk2$e3i@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
thank you for your help, especially with the _, but mine is still not
working.
In[1]:= <<Calculus`FourierTransform`
In[2]:= f[x_]=Exp[-m*x]
-m x
Out[2]= E
In[4]:= FourierCosTransform[f[x],x,a]
Out[4]=FourierCosTransform[E[-m x],x,a]
In[5]:= FourierSinTransform[f[x],x,a]
a
Out[5]= -------
2 2
a + m
as you can see, it will still do the sin transform fine, but not the
cos. it is like mathematica does not recognize it as an internal fxn.
so, it just passes back the original input. i tried changing the fxn to
FourierDamnitTransform also and it did the same thing. FourierTransform
also does the same thing, just passes back the substituted input.
so i think there is something wrong with my version, i am using an intel
pentium II 300 dual and mathematica 3.0 for students for nt. i think
wolfram should know about this bug and fix it. does anyone know how to
report such bugs to wolfram?
lucas