## Search found 559 matches

Mon Sep 27, 2010 4:47 pm
Forum: off-topic
Topic: math
Replies: 29
Views: 3126

### Re: math

I've understood that bit I was stuck at. Its only a matter of using standard results.
Mon Sep 27, 2010 2:53 pm
Forum: off-topic
Topic: math
Replies: 29
Views: 3126

### Re: math

r^3 = r^3 +3r^2 +2r -3r^2 -2r
r^3 -r^3 +3r^2 = 3r^2
(r+1)^3 +3r^2 = (r+1)^3 +3r^2
(r+1)^3 +3r^2 = r^3 +3r^2 +3r +3r^2
(r+1)^3 -r^3 = 3r^2 +3r +1
Mon Sep 27, 2010 10:02 am
Forum: off-topic
Topic: math
Replies: 29
Views: 3126

### Re: math

Where you say "summing and collapsing the left hand side" how did you get (n+1)^3 - 1 ?
Sun Sep 26, 2010 12:45 pm
Forum: off-topic
Topic: math
Replies: 29
Views: 3126

### Re: math

Its a standard result. I'm not sure if you can see the writing under the scan. The example above from a book also uses a couple of standard results.
Sat Sep 25, 2010 1:47 pm
Forum: off-topic
Topic: math
Replies: 29
Views: 3126

### Re: math

Letts P28 2 ans b.jpg (219.57 KiB) Viewed 1568 times
I have used a standard result for the sum of a series of r cubed. The question seems to be a peculiar one.
Wed Sep 15, 2010 2:51 pm
Forum: off-topic
Topic: math
Replies: 29
Views: 3126

### Re: math

A proof by induction isn't the required proof. The attached scan shows the kind of thing needed. It seems to have been a common type of question in A level in the past but maybe not now.
Page618.jpg (423.7 KiB) Viewed 1729 times
Wed Sep 15, 2010 9:25 am
Forum: off-topic
Topic: math
Replies: 29
Views: 3126

### Re: math

Letts P28 2.jpg (30.45 KiB) Viewed 1815 times
Tue Sep 14, 2010 5:26 pm
Forum: off-topic
Topic: math
Replies: 29
Views: 3126

### math

Is there anyone here that is good at math and could answer a question I can't do? I asked on a math forum but noone could do it.
Sat Aug 14, 2010 4:56 pm
Forum: wanted
Topic: WTD: working Acorn ANF-03 cassette recorder
Replies: 5
Views: 675

### Re: WTD: working Acorn ANF-03 cassette recorder

The needle never moves much while playing a tape. You have to be careful putting the major parts together because a short circuit can be caused quite easily. That could be why you hear a hum.
Thu Jul 15, 2010 4:43 pm
Forum: hardware
Topic: RFI: Electron Plus 1 / Plus 3 memory use/workspace
Replies: 6
Views: 728

### Re: RFI: Electron Plus 1 / Plus 3 memory use/workspace

I have a few scans from Electron User. This one is actually the worst scan.
Memory map 1.tif (639.44 KiB) Viewed 655 times
Wed Jun 23, 2010 4:13 pm
Forum: for sale / freebies
Topic: INPUT Magazine DVD Now Released
Replies: 8
Views: 1868

### Re: INPUT Magazine DVD Now Released

Have you scanned the "Guide to Input" supplement? It probably came with an issue in volume 1.
Sun Jun 20, 2010 9:34 pm
Forum: software: other
Replies: 6
Views: 2734

I think the BBC can be set to a fast rate of 19200.
Sat Jun 19, 2010 10:55 am
Forum: coordination of magazine scanning projects
Topic: Input magazine
Replies: 16
Views: 6358

### Re: Input magazine

Have you and Dave Edwards both done a set of scans of Input?
Fri Jun 18, 2010 4:50 pm
Forum: hardware
Topic: Electron fault ?
Replies: 8
Views: 801

### Re: Electron fault ?

Did you get the original ULA to work?
Tue Jun 15, 2010 10:23 am
Forum: archive requests
Topic: BUCKAROO BANZAI - Gold Collection Version?
Replies: 5
Views: 1075

### Re: BUCKAROO BANZAI - Gold Collection Version?

I see what you mean. Before that step you enter Examine fuel and it says:
I see Fuel gauge reads open closed full Fuel is made from

That doesn't make sense.
Tue Jun 15, 2010 9:56 am
Forum: archive requests
Topic: BUCKAROO BANZAI - Gold Collection Version?
Replies: 5
Views: 1075

### Re: BUCKAROO BANZAI - Gold Collection Version?

The tape at the preservation site would not have any faults in the data. If that tape shows the bug then it must be in the game itself.
Thu Jun 10, 2010 3:18 pm
Forum: wanted
Topic: Electron User June 1984 wanted - 4 pages of it !
Replies: 8
Views: 1423

### Re: Electron User June 1984 wanted - 4 pages of it !

I've sent the scans to Matthew.
Sun Jun 06, 2010 11:47 am
Forum: wanted
Topic: INPUT Magazine Issue 13
Replies: 21
Views: 2877

### Re: INPUT Magazine Issue 13

I've sent all of Input 13 except the cover pages to Matthew Thomson.

Does Dave Edwards require the "guide" supplement that came sometime in the first volume?
Mon May 31, 2010 8:11 pm
Forum: wanted
Topic: INPUT Magazine Issue 13
Replies: 21
Views: 2877

### Re: INPUT Magazine Issue 13

I think I would have to have a HTML page that gives access to the files in the FTP page.
Mon May 31, 2010 11:54 am
Forum: wanted
Topic: INPUT Magazine Issue 13
Replies: 21
Views: 2877

### Re: INPUT Magazine Issue 13

The ftp pages can only be accessed with my account. Dave will have to use an email client that receives attachments from Outlook Express.
Mon May 31, 2010 8:43 am
Forum: wanted
Topic: INPUT Magazine Issue 13
Replies: 21
Views: 2877

### Re: INPUT Magazine Issue 13

I'm not sure how to give access to the ftp page. Its a bank hoiday so I can't ask my ISP.
Mon May 31, 2010 8:23 am
Forum: wanted
Topic: Electron User June 1984 wanted - 4 pages of it !
Replies: 8
Views: 1423

### Re: Electron User June 1984 wanted - 4 pages of it !

They are on my site now : ftp://ftp.fraserross.f2s.com.
Mon May 31, 2010 8:20 am
Forum: wanted
Topic: INPUT Magazine Issue 13
Replies: 21
Views: 2877

### Re: INPUT Magazine Issue 13

Some of the scans are on the site now. I'm going to redo some of the Input scans. Is the guide supplement wanted?
Sun May 30, 2010 6:31 pm
Forum: wanted
Topic: INPUT Magazine Issue 13
Replies: 21
Views: 2877

### Re: INPUT Magazine Issue 13

I've scanned it but I don't have the cover. It finishes at P412 and also has an index supplement. I also have a "guide to Input" supplement. Do you need it? I will have an internet site tomorrow that I'm uploading it to along with the EU pages.
Sat May 29, 2010 2:52 pm
Forum: wanted
Topic: Electron User June 1984 wanted - 4 pages of it !
Replies: 8
Views: 1423

### Re: Electron User June 1984 wanted - 4 pages of it !

I'm sending it in 6 parts to Matthew. The pages had fallen out of the middle so it wasn't difficult to scan.
Fri May 28, 2010 6:41 pm
Forum: wanted
Topic: Electron User June 1984 wanted - 4 pages of it !
Replies: 8
Views: 1423

### Re: Electron User June 1984 wanted - 4 pages of it !

I'll see if I have the pages. What dpi do you want and what email address could I send scans to? Is the format required JPG or PNG and if JPG is it to be slightly compressed or quite a lot?
Thu May 27, 2010 10:51 am
Forum: software: other
Topic: Graphics Extension 'B
Replies: 10
Views: 1124

### Re: Graphics Extension 'B

That seems to be all of side 1 except the tape to disk conversion utility. The sprite examples on side 2 are not there. Do you know what format these files are in?
Wed May 26, 2010 5:21 pm
Forum: software: other
Topic: Graphics Extension 'B
Replies: 10
Views: 1124

### Re: Graphics Extension 'B

Does no one have the cassette?
Sat May 15, 2010 12:32 pm
Forum: software: other
Topic: Graphics Extension 'B
Replies: 10
Views: 1124

### Re: Graphics Extension 'B

There is a cassette that came with the rom. Is it available anywhere?
Thu May 13, 2010 9:51 am
Forum: software: other
Topic: Graphics Extension 'B
Replies: 10
Views: 1124

### Re: Graphics Extension 'B

It would be great for speed on the Electron. Do the sprites have a high level of capabilities? I will probably try it out sometime.