Engineering Thread

devinejay · 25-02-2009 07:07PM

Including dealing with negative numbers my 1e3 has a;

while
for
if
if
else
else
if
else

Fun!

P.S. Baza - I noticed that you have one of those radiohead sigg water bottles. Git! I didn't have enough on me to pick one up in Malahide last summer, got me a pretty cool poster instead.

Peleus · 25-02-2009 07:18PM

devinejay wrote: »

Including dealing with negative numbers my 1e3 has a;

while
for
if
if
else
else
if
else

Fun!

P.S. Baza - I noticed that you have one of those radiohead sigg water bottles. Git! I didn't have enough on me to pick one up in Malahide last summer, got me a pretty cool poster instead.

woah, you were in the same room as me when you made that post, creepy. i didn't see you.

Jonathan · 25-02-2009 07:25PM

devinejay wrote: »

Malahide

I live there.

It is a nice place.

Peleus · 25-02-2009 07:27PM

what i did for c++. still managed to get 5 tho.

mathew · 25-02-2009 07:43PM

jmccrohan wrote: »

I live there.

It is a nice place.

Ye.. but its due north of the river...... :P

Peleus wrote:

what i did for c++. still managed to get 5 tho.

I think an Oh Jaysus is in order!!!..... fairplay on the 5 tho...

You must have needed a fair few ifs and fors to get it to that :P

devinejay · 25-02-2009 08:07PM

Peleus wrote: »

woah, you were in the same room as me when you made that post, creepy. i didn't see you.

Get out of my bedroom wherever you are!!!!!!!!!!!!!!!

what i did for c++. still managed to get 5 tho.

Did your program not change scale for larger numbers? (like if the max was 200 you'd go up in tens)

I live there.

It is a nice place.

It was a lovely spot for a gig, couldn't really say if it was better than Marlay Park, the weather and stuff was a factor.

Brian · 26-02-2009 03:57PM

mr. devine, you can still get the bottles on the w.a.s.t.e store - http://www.waste.uk.com/Store/waste-radiohead-dii-31-10035-water+bottle+new+tour+2008!.html

jmcc- Windows7 has been blocked since they updated the NAC. I might try to get a mac usb ethernet then..

devinejay · 26-02-2009 04:11PM

Cheers for the link, I might pick one up.

Also on a somewhat related note;
People say that disposable bottles etc are the work of the devil

Well according to this
http://query.nytimes.com/gst/fullpage.html?res=990CE1DF1339F933A05755C0A960958260&sec=&spon=&partner=permalink&exprod=permalink

it's not all bad. As cool as the sigg bottle is, a whole mess of energy went in to making it compared to the disposable bottle we love to hate. For some figures it says somewhere that you would have to use a normal ceramic mug 1000 times to see the benefit over using 1000 polystyrene cups, what with making it and washing it etc.

I'm not trying to claim any of this gospel, but it's interesting all the same. Or maybe not.

Jonathan · 26-02-2009 04:17PM

Baza210 wrote: »

jmcc- Windows7 has been blocked since they updated the NAC. I might try to get a mac usb ethernet then..

Humm.. You are now registered as a having a mac registered with that MAC address.

Guess you are stuck with that shitty os so.. :P

Their actions were also rather shortlived. I have internet on my phone again.

Brian · 26-02-2009 04:22PM

I don't think you understand me. W7 works on the wifi, as I authentiticated this MAC using OS X for the wifi network, but W7 doesn't work on LAN and OS X doesn't recognise my LAN hardware. So I'm buying a 10/100 to USB off ebay (€4.44 inc shipping), registering OS X and then hoping that LAN works on W7 again. If it doesn't, I have no Skype.

Jonathan · 26-02-2009 04:25PM

Baza210 wrote: »

I don't think you understand me. W7 works on the wifi, as I authentiticated this MAC using OS X for the wifi network, but W7 doesn't work on LAN and OS X doesn't recognise my LAN hardware. So I'm buying a 10/100 to USB off ebay (€4.44 inc shipping), registering OS X and then hoping that LAN works on W7 again. If it doesn't, I have no Skype.

Oh get you now.

Skype not work on wifi?

Boston · 26-02-2009 04:29PM

I saw Baza today wearing blue shorts and a hudie. He didn't see me though.

godtabh · 26-02-2009 05:02PM

Boston wrote: »

I saw Baza today wearing blue shorts and a hudie. He didn't see me though.

Perv

Brian · 26-02-2009 05:09PM

jmccrohan wrote: »

Oh get you now.

Skype not work on wifi?

It does, but I hardly ever have time to talk on Skype when I'm on campus.

Boston, I'll see your me-spotting and raise you an ApeXaviour. I think.

Boston · 26-02-2009 05:21PM

It was definitely you walking down dawson street at approx 2:15 today.

Peleus · 26-02-2009 05:39PM

devinejay wrote: »

Did your program not change scale for larger numbers? (like if the max was 200 you'd go up in tens)

no, making it work for negative numbers involved double the ammount of for loops and if statements so i didnt even wanna think about adding the scale thing. it was just for 'personal satisfaction' as she calls it so i didn't rly care.

Jonathan · 26-02-2009 05:57PM

Peleus wrote: »

personal satisfaction

Oh is that what she is calling it these days?

mathew · 26-02-2009 06:15PM

jmccrohan wrote: »

Their actions were also rather shortlived. I have internet on my phone again.

Hope you manage to work out https now..

Brian · 26-02-2009 08:38PM

Peleus wrote: »

no, making it work for negative numbers involved double the ammount of for loops and if statements so i didnt even wanna think about adding the scale thing. it was just for 'personal satisfaction' as she calls it so i didn't rly care.

To scale-
get range of values using
range=fabs(max)+fabs(min)
unit=range/40 //40 being max number of lines high your graph is
then.. err, I couldn't really figure out which way to do it, but it was something like divide all your values by unit.

devinejay · 26-02-2009 09:12PM

Baza210 wrote: »

To scale-
get range of values using
range=fabs(max)+fabs(min)
unit=range/40 //40 being max number of lines high your graph is
then.. err, I couldn't really figure out which way to do it, but it was something like divide all your values by unit.

Instead of using a for loop inside a for loop, use a for loop inside a while loop.

y=max
while(y>=min){
print out the spaces and stars for that value y
y=y-unit}

It's basically a for loop, same idea - a loop that repeats itself according to three conditions, just the syntax has to be different because the for loop won't let you use variables (max, min, unit) in the conditions bit. (I think)

Brian · 26-02-2009 09:15PM

Where did I mention any loops in my post? They shouldn't be necessary, although I see how yours works too.

devinejay · 26-02-2009 09:21PM

Oh sorry, I was assuming that you were using a for loop in a for loop, which I was originally also. That was the way I ended up getting around the scale thing, if you divided all your numbers by units would the output look right?

Brian · 26-02-2009 10:19PM

Uh, not sure. You multiply the line number by unit, and then check the slot value against that. I think.
So.. within the for loop counting down the line numbers - if (array[h]>=(i*unit)) cout * else cout blank.

devinejay · 26-02-2009 10:24PM

Yeah, and an if again to swap the * and blank for negatives.

Brian · 26-02-2009 10:50PM

Yeah. I didn't actually get it to work, but I had forgotten that there were those two extra-cred exercises when I finished my program so I only had time to do the negative numbers when I was reminded.

devinejay · 05-03-2009 02:10PM

Just thought I'd ask, how are any other JFs doing with the autocad? I've yet to start mine and I should be devoting time to the maths test until tuesday, so it'll be a bit of a rush in the end.

Jonathan · 05-03-2009 03:07PM

Study your maths.

Far more important and relevant to you.

TheAmateur · 05-03-2009 04:41PM

devinejay wrote: »

I've yet to start mine and I should be devoting time to the maths test until tuesday, so it'll be a bit of a rush in the end.

yeah I'm in the exact same boat... people are worrying me saying they've it done and all, so I'm glad to hear I'm not the only one! I've it downloaded at home though so hopefully I'll be able to do it at home after maths.

devinejay · 05-03-2009 06:20PM

jmccrohan wrote: »

Study your maths.

Far more important and relevant to you.

Well at the moment I'm doing neither, but I take your point, and I'm getting to it.

Just out of interest, what's the general trend with the 60/40% or 100% for 1E1/2. Are the majority of people who take the 100% those who've done nothing all year and those who are really really good at maths? At the moment it looks like I won't be doing as well as I should if you count assignments and mid-year tests, but I've a feeling I'll have to put in a lot of work to make a marked improvement with the summer test.

Jonathan · 05-03-2009 07:16PM

devinejay wrote: »

Just out of interest, what's the general trend with the 60/40% or 100% for 1E1/2. Are the majority of people who take the 100% those who've done nothing all year and those who are really really good at maths? At the moment it looks like I won't be doing as well as I should if you count assignments and mid-year tests, but I've a feeling I'll have to put in a lot of work to make a marked improvement with the summer test.

Wut?

It was different for us last year.

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