I became one of the 15c collecting Crowd

[thenozone]

I became on of the 15c collecting crowd, bought from (https://sciencestudio.co.uk/collections/...cts/hp-15c) seems the best price including postage in the UK at the moment has been in stock for a while.
But I was a bit disappointed that it it will not integrate e^(x^3) between the limits of 0 and 6. the pc emulator does it in a fraction of a second, but I let mine run for 30 minutes and it didn't supply an answer or report a fault ( the DM15c is faster in lower values but couldn't wait for it on range 0 to 6), . I know you might say a pc is a lot faster but over 3,500 times faster?
Thought someone else would have mentioned it as it is quite a common test.