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Question: Strange behaviour when using assume and saving variables

Question:Strange behaviour when using assume and saving variables

w-Teilchen 80 Maple 18
read save assume
May 04 2016
0

Hi guys,

I'm doing some heavy analytical calculations, as the calculations take hours to finish, I want to save the results, which is easily done, however when I load the saved results, it behaves differently, somehow I can no longer substitute the variables. I extracted the main problem into the following minimal working example.

Thanks for any useful insight,

Cheers, Sören

> 

restart():
> 

assume(`in`(n, real))
> 

x := n+1

n+1

 (1)
> 

subs(n = 1, x)

2

 (2)
> 

save x, "./myfunction.m";
> 

read "./myfunction.m";
> 

x

n+1

 (3)

Now we can't substitute n in x:

> 

subs(n = 1, x)

n+1

 (4)
> 

subs(n = 1, n+1)

2

 (5)
> 

y := x:

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