Search results

Here is a fantastic little site I found that allows you to find the code for most any LaTex without searching through pdf files or what not. Just go to the site and draw the symbol you would like to know the code for. It displays it. I wanted to know the code for the scroll-like L used in...

I just wanted to let the 'regulars' know that I may give it up on this site. I am sick and tired of 'disapproving' these idiotic posts: funny pictures, nonsensical languages, porn, etc. Other sites I visit do not have this problem. I do not know what they do that this site doesn't, but it...

Here is a problem I recently ran across I thought was kind of interesting if anyone would like a go. "find the equation of the parabola with directrix y=2x and focus at (5,2)".

Top Engineering Terms and Expressions (What engineers say versus what they mean) 1. A number of different approaches are being tried. (We are still guessing at this point.) 2. Close project coordination. (We sat down and had coffee together.) 3. An extensive report is being prepared on a...

Well, it would appear some Russian scumbags are posting porn. I just deleted several.

I recently found out how to graph piecewise functions on my Voyage 200/TI-92. I had never really given this any thought until a student brought it up. Though, she wanted to know how on a TI-83 Plus. So, I got to thinking, how to do it on my calculators?. Here is the screen shot to graph...

I do not want to speak too soon, but it would appear Ted's attempt at ridding the site of the vile spammers has proved triumphant :D Kudoes to the Tedmesiter

These pictorial problems are fun. Try this one if you like. Below is a diagram of a small circle inside a larger one. The origin is at the center if the larger circle. Given the dimensions shown, find the area of the white region. There is 9 units from the left edge of the big circle to the...

Here is a related rates problem I saw somewhere but I can't remember where though. Anyway, it is slightly different from the run-of-the-mill, cliche problems we see over and over again. "A man is standing at the topmost edge of a circle of radius R. He walks toward the center at a rate we can...

I just deleted and banned several spamming morons that post nonsensical jibberish that apparently aims to sell gold, as far as I can tell. There are still several left. I got tired of deleting and deleting. This has gotten old. Is there anyway to keep these a**holes away from the site?. I...

Hello All. Here is a cute problem you may have seen before. It is not particularly difficult, but just a fun little problem. "A Princess picked a basketful of golden apples in the enchanted orchard. On her way home, she was stopped by a troll. The troll demanded payment of one-half of the...

Here is a cute problem I ran across in an old textbook I found out in the shed. I have posted a half-a**ed Pant diagram. The best I could get it. "A set of 4 marbles of 3/4 inch diameter each are to be packed inside a sphere. What is the *exact diameter of the smallest container possible?". *...

The TI83 is the most prolific calcualtor out there. It does many stats operations, but few know how to use it to its potential. Here is a link. Click on the topic of interest. There are pdf files showing the step-by-step process to perform stats with the TI-83...

What is that supposed to mean?. Are you adding in base 5?.

Stare at the + in the center and see what happens. It is pretty cool.

Hi All: I don't know about anyone else, but here where I live there is almost 2 feet of snow and it is not done yet. Subhotosh, you should have your share as well. :D

Here is a proof that 2=1. No arguments. I don't want to hear it!. I am right and that's all there is too it!!!!. :wink: For x>0: x=\underbrace{1+1+1+.....+1}_{\text{x times}} x^{2}=\underbrace{x+x+x+....+x}_{\text{x times}} D(x^{2})=D\left(\underbrace{x+x+x+...+x}_{\text{x...

Here is the code to build a chart in LaTex. Just change the size or entries accordingly. \begin{array}{|c|c|c|c|}\hline {\alpha}&{\beta}&{\gamma}&{\delta}\\ \hline {\epsilon}&{\iota}&{\kappa}&{\lambda}\\ \hline{\mu}&{\nu}&{\xi}&o \\ \hline {\pi}&{\rho}&{\sigma}&{\tau}\\ \hline \end{array}

Here are two fun 'challenge problems' if you wanna have a go. Chrisr?. BigGlenn?. Soroban?. or whomever. Right up your alley. :D #1: Find the value of 'a' so that the following equation is true...WITHOUT L'HOPITAL. \lim_{x\to \infty}\left(\frac{x+a}{x-a}\right)^{x}=e #2: \lim_{n\to...

Now, as I type this, there is freezing rain coming down. The road has not been treated and is solid ice. Brrrrr!. If one turns on the Weather Channel, look at lower PA at the MD border. It shows pink, which is freezing rain and a mix. That's me. No going out today. Someone post something...