# Latest activity

• Jomo reacted to Cubist's post in the thread Random Variables with Like.
This might be the wrong direction to go in, but maybe start by considering the sum of two uniform distributions only and then maybe it...
• pka replied to the thread Find shortest way from A to B.
There is almost the exact question in a discrete mathematics text( I forget which). The are many on a flat grid that ask for the number...
• It doesn't say you have to follow the marked lines, only that you have to stay on the surface. Your route, as I understand it, would...
• pka replied to the thread Find shortest way from A to B.
I find this question trivial. From the instructions the distance is meant to be along the faces of the cube using the line segments...
• Cubist replied to the thread Random Variables.
This might be the wrong direction to go in, but maybe start by considering the sum of two uniform distributions only and then maybe it...
• Very interesting indeed. Thanks for the back story. You've done a great job researching the data that the read head outputs. And an even...
• All I can see in this problem is that E(Xi) = 0 and p(a<Xi<b) = (b-a)/(2i) assuming (a,b) is in [-i,i]. Please help. Thanks!
• topsquark reacted to Dr.Peterson's post in the thread Matrix about coins with Like.
The problem bothers me, because the fact is that you do not need any matrix at all! And if you choose to use a matrix, and there are...
• Thank you both. I understand it much better now.
• OllieOpps reacted to HallsofIvy's post in the thread For a particle motion question, I am getting a negative time. What do I make of this? with Like.
Please tell us the full problem. Does it say that t represents time? Just because the letter "t" is used in an equation does not...
• OllieOpps reacted to JeffM's post in the thread For a particle motion question, I am getting a negative time. What do I make of this? with Like.
You have found the zeroes of the function's first derivative correctly. Those zeroes indicate the times, relative to your base time of...
• You're right, I am very sorry for all my mistakes. I would like to write : 134,6692+(c-34,25)2+(66-c)2 = 269,65
• Jomo reacted to HallsofIvy's post in the thread Finding a constant in polynomial long division with Like.