Linear Programming lecture 1: If you took Paper F2 (CBT) during 2011, or if you took Paper F2 (paper based) In June 2011 or earlier, then this lecture is revision for you.
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Thank you very much! i appeared for my F2 exam in november 2011, my first attempt of F5 will be dis june, dis was a great revision lecture! now i ‘ll move on to the second lecture! Thank u very much sir!
Why are we not considering point A? Because A seems to be farthest away from the origin, isnt it? Please reply soon…
Its not just choosing the point furthest from the origin – it is a question of getting the contribution line as far as possible from the origin.
i wish linear programming comes this june
Linear programming will certainly come again soon. I think there is a reasonable chance it will be this June, but that is only a guess – you had better make sure you are happy with everything else as well
so John do you think that we may get a graph such as the one on the 2010 paper or we will have to plot the graph
If it does come up in June then it could be either. In the past you have usually been required to draw the graph yourself – the one in 2010 was unusual in that it gave you the graph.
Sir John, Thank you so much for all the resources you and your team have been providing via opentuition. I have one quick question. what is the chance of this area being tested at P5 level.
Linear programming is extremely unlikely to be examined in P5.
Just as I thought…Thanks a lot!
I am not able to view the videos. It says that there is a server problem. Can I get some help please. I really need to view these.
The videos are working fine – the problem is likely at your end. Try clicking on the ‘technical support’ tab at the top of this page for suggestions.
server problem means that you are most likely behind a firewall. contact your internet provider for help
good lecture,but i could’t understand that whether ISO CONTRIBUTION line is necessary to draw or not.
Yes – you have to draw it for two reasons:
Firstly, if you do not draw it then you do not know which of the corners of the feasible region is the best. It could be any of them. (OK you could check each of the corners separately, but this would waste time).
Secondly the examiner expects to see it and there will be marks for showing it
Mr John, I just want to say that I am having a course with one of ACCA learning partners who has a golden status “i don’t really want to mention the name” and I didn’t understand a word of linear programming!! As I watched your lecture, I think it is one of the easiest topics where I can score marks and I am really hopping it will appear in June’s exams!
Thank you! and btw this is the case with most of F5 lectures, I have to come here to understand the topic! Thanks!
Thank you very much
hello, i have just started using an android device and i cant seem to play the videos. is android not supported?
Since android out of the box does not support these days flash or mp4
Answer is no
But if you look around android store and download flash player or some browsers many students made it work
So experiment
ok, i’ll try to get round it somehow. many thanks
hi mate ..I had a same roblems as yours .. I got not 2 .. video didnt play but download opera from androi market and it plays any video ..my works fine ..pls do so its lovely apps ..thanks
Waal what a great lecture!! this is excellent to say the least, i will definately use open tuition for better results…. thank tutor keep the good work up.
thanxxxxx thanxxxxxxxxxxxxxxx alot , we all love u so much Adim,GOD bless u, i wich every body could think like u this world would be like heavn…………….thanx again
why do we use 40 as max values for X and Y axis ?
because Maximum Production of Standard chair is 40.
I actually think your lecture is brilliant and its free. I will pay a premium if i have to. Thank you.
ori e
John, thank you for the excellent lecture on linear programming, you’ve got Empathy
what would be the equation if demand is less than the point where material & labour are intersecting??
Very helpful. Thanks alot!
Hi Admin..i have question as explain in example that Iso-Contribution line could be anywhere but if it is after the corner B or A then what is it will be right or not. one thing the optimal point will always be where they constraints cross each other. ???? Please reply me
Thanks a lot
Sir your way of explaining the last equation was soo clear , your method is much easier…… thanks a lot ……
Very good Lecture I wish I could have listened to him before
Why cant we play this video on tablets. And in my pc the video stops in d middle ftequently. It says server error smthin like dat.
If your tablet plays mp4 files
Videos will work
Try another browser??
There are many tablets – lectures work on most of them
With or without flash
I believe in a situation where we have an accurate graph then we have to get the answer by reading the graph and not determine the answer by solving the equations. Is that so?
@self, In the exam you will always be expected to be able to solve using equations.
However well you draw your graph it will never be as precise reading from the graph as it is solving the equations.
You still need the graph to be able to know which equations to solve.
@johnmoffat, Wow…thanx a lot. You brought light into the dark!
@self, Great!
dont stop plz, God wl reward you
VERY VERY GOOD. PLEASE DON NOT STOP THIS FREE SERVICE. I PROMISE I WILL DONATE WHEN I BE EMPLOYED. GOD BLESS YOU
nice lecture…
very prof lecture
great lecture.
good lecture… easy to follow.
@admin I can’t see any videos. Should I do anything extra to see them?Thanks
try google chrome browser
@admin. i have been watching the videos all along until yesterday. and now i have just logged on but all i can see is the comments, there are no vidoes, please help.
the lectures is good but i still have a problem with how he got the scales.he didn’t say it later as promised.
Excellent. Very well explained. Great Lecture. Really enjoyed the lecture!
wow!I wonder why I did not listen to the lectures before;They are totally effective!
@johnmoffat,
Your lectures are amazing…I love the way you make everything so simple,yet comprehensive.Keep up the good work!!
thanks again
wow!wonderful,comprehensive lectures!!thanks!
The topic was explained really well in a very clear manner. I did not understand this before- now I’m really confident.
I fully agree- theoretically the whole graph is a waste of time.
@malka77, the graph is not a waste of time for two reasons:
One is that the maximum could occur at any of the corners of the feasible region. The only way that you can do it without the graph is solve for when every two constraints cross, and then check which ones of those are not feasible because they break one of the other constraints. (The lecture explains why this is so)
Secondly, the examiner regularly tests you on the graph – either by asking you to draw it, or by giving you the graph in the exam.
@johnmoffat,
What I meant to say was that there are two methods- either through graph or by using simultaneous equations. Since the graph requires you to use simultaneous equations- is it not better to just study that method? That is why I do not understand why the use of graphs is required as part of the specification.
@malka77, You still need a graph, because suppose there are three constraints. Each pair of lines crosses at a point and so there are three points you will find using simultaneous equations. However, one of those points could well be outside the feasible region (because of the other constraint). Without having drawn the graph you would not know this. (You could check, but then because of the time taken, you would have been quicker drawing the graph and then only need one simultaneous equation)
Dear tutor,
I liked the way you explained. One thing I didnn’t get is why did u take the point B when it has nothing to do at all….I mean the way we took out maximum contribution was a simple mathematical solution…So why take B and run out of time???
Nice lecture
iam looking for the f5 limiting factor and em confused if this xample is frm f2 book or f5 book??
it used to be in F2 & F5 syllabus,
Now, it’s only in F5
really helpful, thank u
thanks keep it up
i’v been missing in action. opentuition is absolutely great! but whats happening to linner programming? its not playing throught.
this lectures is very very fantastic