Well, it could be used as a clock, but its really setup as a timer right now. A few tweaks here and there and you should be able to use this as a clock. For one reason or another, I didn't finish this app all the way. Hit 2nd then ON to exit it. Modify the 350 at line 11 to suit your needs of you calculator (may require some fiddling).
Use this app to center your text on the TI (default is 40 characters across). Modify the 40 at line 10 to suit your calculator or even your computer. If you are creating an ASCII application on your PC, set it to 80.
This app attempts to calculate loan information. You will want to modify this one so it fits your needs. It doesn't have a way to input the interest rate. To change it, just modify this line: (FP)/(79/100)\->\MP and change the (79/100) to the desired interest rate.
This program I believe was used for Discrete Math. It calculates the decimal representation of a binary decimal number. I believe the TI-85 can do this natively, but this app was built to reduce data entry issues and reduce key presses to switch from DEC to BIN and then back. It asks for the length of the string as well which allows it to account for 0 place holders.
A very simple example of graph animation. A "ball" (really its just a line) goes back and forth.
Amuse your friends with this one. Ask a question out loud (or quietly if you are shy) and your TI will give you an answer. The name is misspelled on purpose.
Pythagorean theorem is awesome when you're working with right triangles, but pre-calculus doesn't just limit the triangles to right triangles. So this program excepts any 3 parts of a triangle. Be it 3 sides, 2 sides and an angle, or 2 angles and a side. The order you enter them in doesn't matter. In fact, the program is geared to allow you to input the known values as easily as possible. Once entered, the program will find the missing pieces. If the triangle has two solutions, it'll provide both solutions as well. The program also calculates the perimeter (sorry, didn't have time to add area to the program). The input is not validated. Entering 3 of the same pieces or 3 angles will cause the program to choke. After the result has been displayed, press Home to exit or press Enter to solve another triangle.
Continue reading “TriSolve – Finding the missing triangle pieces”
Find the area under a curve or graph. Enter an equation, the lower bound, upper bound, and the number of iterations or "boxes." SumArea then shows its work. It provides delta x (or the width of the boxes), the calculations for right end points, left end points, and middle points. SumArea pauses often to allow review of the data (press Enter to continue or ON to exit). After hitting pause a few times, look for the line with "= [number]" – this line is the sum (aka: the answer) for the calculation in progress.
You'll need to use a TI font (such as TI-92 Mini Sans) to view on your PC. But in theory, may transfer over without problems on to other TIs (such as TI-85,83,82,etc). Just copy the text (with all the goofy characters) over to the TI GraphLink Program Editor and save it as a program (it won't run so you'll need to go to Program Edit on your calculator)
Pre-Calc Trig Formulas (TI-89 text file)
Here's another one of my favorite apps. Its gotten a lot of mileage and originally started out on a TI-81. It asks for X1, Y1, X2, Y2 which is typically in a text book as (X1, Y1), (X2, Y2). Plop the 2 coordinates in and it tells you the slope (M), distance between the two points, and the X and Y intercepts (if available).
Give it A, B, and C and it spews out all sorts of nifty info regarding the equation. This app was originally done on a TI-81 and perfected over time. If its a valid equation producing two real numbers, then it will let you know if its a parabola and if it opens up or down as well as the exact points it crosses the X axis and the vertex point.
Olessia and I are back from Russia. We spent 2 weeks there in Dubna, Moscow, and St. Petersburg. We’re still recovering. Pictures have been uploaded. I’ll post more info shortly…
Continue reading “Russia”
I’m going to Russia with Olessia!! My passport finally came back with the Russian visa stamped in it. It didn’t help that I forgot to sign my passport before sending it to the Russian embassy. Oops.
Continue reading “Russian Visa Update”
Development on axtime.com has been an all summer activity. I'm getting close to wrapping up an update to the existing site. Basically, it is a complete rewrite. The things I know now compared to 5 years ago is evident when I look at my code (what a mess!). A preview of what I'm doing can be found at http://v3.axtime.com.
Continue reading “Autocross Results”
I’ve been trying not to get too excited about our upcoming trip to Moscow. I haven’t received my Russian visa yet. The good news is just yesterday we received a slip from the post office. This should be the invitation from Olessia’s mom (it has to be signed for). I’ll be picking it up shortly. If everything looks good, it and my passport will be sent off to the Russian Embassy in D.C. With this document coming in, it is now permission to get excited. We can now purchase the airline tickets. We can start planning and packing for the trip. I’m looking forward to meeting all the new people, trying all the new food, seeing all the sites, sounds, and smells!
Continue reading “Moscow, Russia”
Whoa! Olessia and I are pretty sure the bird we saw was a hawk in our backyard. I'm not sure if it was Cooper's Hawk or a Sharp-shinned Hawk. Which ever hawk it was, it caught a local House Sparrow. That hawk was a very impressive bird and had swooped in from out of nowhere. Sorry, we didn't have enough time to get a camera. As soon as we spotted the hawk, we saw it take off with the sparrow.
Continue reading “Hawk”
Mmm… It's July 4th and at 11:30am, you can already smell the lighter fluid! The weather is looking like it wants to rain. The temperature is awesome – just warm enough for shorts. It is a good day to grill!
Continue reading “It’s July 4th”
Brief Acura TSX History
The TSX was first introduced in 2004, in the USA. Outside of the US, the TSX is known as the Honda Accord. The 06′ TSX model is based off the Accord Type-S found in Japan. The TSX fills gap left when the Integra sedan was discontinued and replaced by the RSX (which only came in a hatch back flavor).
There was little change from the 2004 to 2005 TSX. The 2006 model had minor model improvements (for example: minor bumper style changes, fog lamps included, bluetooth included). The 2007 model introduced tire pressure sensors.
The 2006 Acura TSX was awarded 2006 10Best Award “Best Sports Sedan” from Car & Driver.
The Maintenance Minder codes for the 2006 Acura TSX, from page 274 from the “2006 TSX Owner’s Manual” by Acura.
Brief Acura Integra 3rd Generation History
The first year for the third generation Integra was 1994 and the GS-R did come in four door and hatchback flavors. The 1995 models are very similar to the 1994 editions but minor engineering updates throughout the car. The 1996 Integra received OBDII (the ’94/’95s had ODBI) and minor engineering updates.
The GS-R was the top end model until the release of the Type-R in 1997. In 1998, the third generation Integra line saw a slight cosmetic update and is usually known as version 3.1. The easiest way to tell a version 3 Integra from a version 3.1 Integra is to check the rear tail lights. If the turn signals are amber, then its a version 3 (’94-’97). If they’re red, then its a version 3.1 Integra (’98-’01). Another trick is to watch the blinking front turn signals at night. If the entire turn signal module blinks in sync (there’s two bulbs), then its a version 3.1. The ’94-’97s two bulbs blink opposite each other producing an interesting on/off effect. You have to watch out, the front turn signals appear to be a favorite for kids to modify.
The third generation Integra design survived for seven years until the release of the 2002 Acura RSX, the predecessor to the Integra. The RSX was discontinued in 2007.
Had another trip to Chicago last weekend (I’ve now lost count how many times I’ve been to Chicago). This trip was for Jason and Leslie’s wedding (pictures in the gallery). We scrambled out of town on Friday evening after a full day of work and made it in to Chicago 12:15pm Cleveland time (11:15pm Chicago time). Saturday we recovered from the drive and attended the ceremony and reception (all of which was beautiful).
Before the trip, we didn’t have any plans for Sunday or Monday. Olessia found some ideas for Sunday and a dinner cruise sounded like a great idea. Plus, the cruise she found was a fancy one which required evening/cocktail attire (which just so happened we had brought with us because of the wedding). The cruise was excellent. A trip up and down the Chicago skyline during sunset, while eating an excellent dinner. The cruise concluded with fireworks.
