Image Map Image Map

Search:

Type: Posts; User: thumbs

Page 1 of 2 1 2

Search: Search took 0.02 seconds.

  1. Replies
    35
    Views
    17,447

    Ohm DC, 1-22-2020 I wanted to be able to work...

    Ohm DC, 1-22-2020

    I wanted to be able to work a list of formulas directly. I put the formulas in DATA statements. With the [+] [-] keys I can scroll up and down the formula list. When I find a...
  2. Replies
    35
    Views
    17,447

    Stat, 12-15-19 Edit: I can only edit a short...

    Stat, 12-15-19 Edit:

    I can only edit a short time after I post. I was looking over the Stat program and I see I was a little redundant. You can reduce the repetitive math by replacing these lines...
  3. Replies
    35
    Views
    17,447

    Stat, 12-15-19 My granddaughter was showing me...

    Stat, 12-15-19

    My granddaughter was showing me how to use/do paired statistics. She had her TI-84 and I had my TI-74 in Calc Mode trying to keep up with her. In Calc Mode I haven't found a way to...
  4. Replies
    35
    Views
    17,447

    Combined Gas Law, 11-4-19 On one of my old...

    Combined Gas Law, 11-4-19

    On one of my old cars I want to increase the pressure in my copper radiator and raise the boiling point of the coolant. Using water as the coolant, what temperature would...
  5. Replies
    35
    Views
    17,447

    Parabola, 8-20-19 I have some left-over thin...

    Parabola, 8-20-19

    I have some left-over thin aluminum roofing flashing. I want to see if I can make a parabolic solar cooker that would grill a hamburger. I need to figure and trace out 1/2 of a...
  6. Replies
    35
    Views
    17,447

    Heat Index, 7-3-19 Summer is here. Since...

    Heat Index, 7-3-19

    Summer is here. Since temperature and humidity will vary from location to location, I decided to make a Heat Index program for my Ti-74 that I could use as I'm traveling and...
  7. Replies
    35
    Views
    17,447

    Right Triangle edit: 5-17-19 To be sure you're...

    Right Triangle edit: 5-17-19

    To be sure you're in degree mode put DEG at the beginning of 14000:

    14000 DEG:PRINT "Right Triangle":PAUSE .6:RESTORE 14400:ON ERROR 14490

    For labeling, x y...
  8. Replies
    35
    Views
    17,447

    Right Triangle, 5-17-19 I like playing with...

    Right Triangle, 5-17-19

    I like playing with old cars. I needed something more flexible than P>R and R>P for suspension geometry and body angles. I made this program for my ti74 that works a right...
  9. Replies
    35
    Views
    17,447

    Calories Burned Cycling, corrections, 4-4-19 I...

    Calories Burned Cycling, corrections, 4-4-19

    I found some errors. Change:

    1540 IF CW$="k"THEN WT=W:GOTO 1560

    1570 IF MT$="v"THEN 1600
    1575 IF MT$="m"THEN 1590

    The Kgs example result:...
  10. Replies
    35
    Views
    17,447

    Calories Burned Cycling, 4-3-19 Now that the...

    Calories Burned Cycling, 4-3-19

    Now that the weather's warmer, I'm back on my bicycle. If I didn't ride my bicycle I'd probably not excercise at all. I vary my ride frequently and often wonder how...
  11. Replies
    35
    Views
    17,447

    Simpson's Rule, 3-2-19 I found this website...

    Simpson's Rule, 3-2-19

    I found this website that calculated the volume of an American football with a definite integral.

    https://www.math.ucdavis.edu/~morris/16B/sec5.7.pdf

    As I've said...
  12. Replies
    35
    Views
    17,447

    Wind Chill, 1-25-19 Sometimes the weather...

    Wind Chill, 1-25-19

    Sometimes the weather report doesn't give the wind chill. Sometimes my local weather conditions differ from the weather report. When it's really cold outside I like to know the...
  13. Replies
    35
    Views
    17,447

    Conversions, 1-4-19 I thought it would be nice...

    Conversions, 1-4-19

    I thought it would be nice to have a package of my own frequently used conversions. The layout 'mi>km', miles to kilometers, made sense to me. The number 1.6093 multiplied by...
  14. Replies
    35
    Views
    17,447

    On the Dec Bin Hex program I found an error...

    On the Dec Bin Hex program I found an error today. (I can only edit up to 15 mins after I post). Line 9820 reads:

    9820 IF CT<6 THEN GOSUB 9900 ELSE Z8$=F9$:RETURN

    It should be:

    9820 IF CT<6...
  15. Replies
    35
    Views
    17,447

    Bin Dec Hex, 11-28-18 I was given an old...

    Bin Dec Hex, 11-28-18


    I was given an old Tandy Color Computer. While playing around with it I decided I needed something to convert from binary to decimal to hex. I found these bin-dec-hex...
  16. Replies
    35
    Views
    17,447

    Drive Ratio, 11-10-18 My grandson was setting...

    Drive Ratio, 11-10-18

    My grandson was setting up his drive train on his air-cooled VW Bug. Since his cooling is tied to engine rpm/fan he wanted to know what his setup would be doing. I made this...
  17. Replies
    35
    Views
    17,447

    Unit-Unit, 10-30-18 I'm not very good at math....

    Unit-Unit, 10-30-18

    I'm not very good at math. Every now and then I play with electronics. Here's a program I wrote for the TI-74 that converts the value from one unit to another. The conversion...
  18. Replies
    35
    Views
    17,447

    *****

    *****
  19. Replies
    35
    Views
    17,447

    Recently I decided to build a small stationary...

    Recently I decided to build a small stationary steam engine for entertainment. Not being a professional machinist or engineer, I needed to figure out how to determine and make a small eccentric cam...
  20. Replies
    35
    Views
    17,447

    I made this small RPN style calculator mainly to...

    I made this small RPN style calculator mainly to work on my old car's suspension using a polar to rectangular(pr) and a rectangular to polar(rp) routine in Basic. I find it helpful to roll over or...
  21. Replies
    35
    Views
    17,447

    I'm not sure if this will make sense to anyone...

    I'm not sure if this will make sense to anyone else, but this helps me pay my bills. I admit my monthly bills are quite simple. CK in line 1 is my current checking account balance. DATE$ is for date...
  22. Replies
    35
    Views
    17,447

    I was helping my grandson rebuild his air-cooled...

    I was helping my grandson rebuild his air-cooled VW Beetle engine. He needed to determine his compression ratio for each cylinder. We went online and found compression ratio calculators. Most were...
  23. Replies
    35
    Views
    17,447

    My cardiologist said I should lose weight. So, I...

    My cardiologist said I should lose weight. So, I went online to find information on calories so I could do something on my TI-74. I found this website,
    ...
  24. Replies
    35
    Views
    17,447

    Thanks Jack. That's good to know. I'm stilling...

    Thanks Jack.

    That's good to know. I'm stilling trying to get deeper into the 74.....it may take a while :)
  25. Replies
    35
    Views
    17,447

    Here are some miles per gallon programs I use. My...

    Here are some miles per gallon programs I use. My old cars only have speedometers in MPH, so the input distances are in miles. I've used the first program when I've traveled through Canada. The...
Results 1 to 25 of 40
Page 1 of 2 1 2