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Sorry Lorraine, just being asinine, I knew what it was. But for the record it is confusing. The way children are taught to calculate is probably the main reason that people grow up hating math.
Yep, says that is not a downloadable file. I am on a Social science reseatch network. Is that correct?
Gotcha! Just kidding!
Hi MathsisFun;
Thanks for explaining it.
OK. I am there but I can't find page 15/33
Whats long division?
Hi schreiber;
That I don't know. Unless you can give me a little more, I am unable to help.
True, but you are asking another question. I am answering post #3 which says with and without
In an optimization problem a slack variable is used to turn an inequality into an equation.
No, I don't think that is the correct diagram.
We can calculate everything from what we already know.
unfit with heart disease 25% Given
unfit without heart disease 15% 40% - 25%
fit with heart disease 10% 35% -25%
fit without heart disease 50% The rest
Hi schreiber;
Are you doing a linear optimization problem because they use slack variables?
Hi ssmath;
You can't just add them all up because you will be counting some twice or more. A Venn diagram shows this clearly.
I'm a lot quieter since I've been distilled
Hi random_fruit
I am getting that error also. Thanks for the MySQL info.
P(unfit) + P(heart disease) - P(unfit and heart disease)
40% + 35% - 25% = 50%
Hi LorraineBR;
Welcome to the forum.
I used to belong to theTeamster Union and then I was dismembered.
I'm glad you understand it. Don't want to do anymore Linear Algebra. Nullspaces,vector spaces, basis vectors, spans, eigenvalues,eigenvectors ,Uhhhh.
Hi LorraineBR;
Also the second vector is -2 times the first vector. A sure sign of linear dependence.
Here is a page that I have used for these type of problems.
http://ltcconline.net/greenl/courses/203/Vectors/linIndSpan.htm
How true and in the spirit of Acton. People involved in maths today hardly ever sketch a function. They immediately run to the blackboard and start thrashing and flailing around, just slinging symbols. They don't even bother with all the excellent graphing software that makes this so painless.
Hi feiutm9898
So you are trying to implement a division routine that doesn't use reciprocal mult. This used to be necessary because many early processors did not have a multiply or divide instruction. Years back, when we were writing our own CAS, we researched this particular problem. The Knuth books are the best place to begin. There might be something slightly faster, but we ended up using the recip. mult method with newtons iteration. It was very fast, but picking an initial value can be a pain (this problem can be solved too).
I used to be a warlock until I was dispelled
I used to be a dealer and then I was discarded.
Someone was able to make a 9 or 10(?) planetary system that will and has remained stable for billions of years.
Hi Kurre;
I have been working very hard on your #7. I will continue to work on it, but in case I don't get there after a couple of weeks more. I would very much like to see your method.