75 Comments

  1. Hailee D

    There are thousands of online graphing calculators available online. Just typing 'online graphing calculator' in a search engine yields many, many results.

    Here's one of the first: http://www.coolmath.com/graphit/

    It seems easy enough to use; it requires you have a Java Runtime Environment installed, however. Most newer computers should already have that though.

  2. Tab C

    Usually the TI-83/84/Plus/SE calculators, being the most popular, have the most games made for them. The TI-89, TI-92, and TI-Nspire (CAS) calculators are great for calculus, but don't have as many games.

    I'd recommend the TI-84 Plus (SE).

  3. nelyud

    電卓 (dentaku) – that’s “a pocket calculator” in Japanese.

  4. Adriana Sofia Corinthos

    I have the TI30 of Texas Instruments and i must say :
    i have it already for 20 years ! It works very good and
    it's very practical in use. I recommend that you buy
    a calculator with sin, cos, tan, log, lnx and INV buttons.
    It's also interesting to have a x! button for factorials.
    y^x for powers is also interesting but you can calculate
    powers with ln(x) and INV ln(x) (=exp(x)) as follows :

    y^x = exp(x * ln(y))

    y Lnx * x INV Lnx (in buttons)

    Good luck ! I couldn't miss my calculator.

  5. April Rose

    Based on your measurements, your bra size is 36C. It sounds like it may be time for a new bra. Bra sizes vary ALOT …different manufacturers, styles, fabrics, etc…use the sizing system as a guideline only ….try on different bra styles to see which ones are more comfortable, and though it might sound boring, include a visit to the lingerie section of your local department store, like Macy's…their bra fitters will be able to make suggestions on which styles will fit you best. Good Luck!

    http://www.love-of-lingerie.com/bra-size-calculator.html

  6. HorseRidingGal

    Im not sure what the Casios can do as i own a Ti-84 but i had to download a separate program to do it on mine (which both factored and solved quadratic equations).

    Just from google this site seems to have some software for your calculator:
    http://casiokingdom.org/modules.php?name=Downloads&d_op=viewdownload&cid=5#cat

    Not sure if that is any help but i hope you find one!

  7. jeffreyjya

    Wow, these guys must have discovered ecstasy early.

  8. cid

    Assuming you mean degrees

    sin 30 = .5
    cos 30= sqrt(3/2)
    tan 45 = 1

  9. 21hurtst

    I play with my sampler everyday and wish i were as good as these guys. any producers wanna give oldschool advice to a newb holla.

  10. Matt C

    There is no way to evaluate expressions such as log(64) exactly. This is an irrational number, and even computer programs are just ways we have of approximating the exact number.

    There are many other approximation techniques. Some include mechanical computers (like slide rules); others are graphical and involve the use of logarithmic or semi-logarithmic paper (they are in fact similar to the principle upon which a slide rule works). Some are purely mathematical… I believe someone already mentioned Taylor series expansions. For the 17th or 16th century, these would probably be the most practical and accurate techniques.

    For example, to approximate log(64), you would likely start by making the conversion

    log(64) = ln(64)/ln(10)

    via the change of base formula. Then you would find the talyor series expansion of ln(x) about the points 10 and 64. (This is only because it is easier to find the taylor series of ln(x) than log(x) .)

    The first four terms of the taylor series expansion of ln(x) about the point x=64 are given by

    -1 + ln(64) + (1/64)x – (1/8192)(x-64)^2 + (1/786432) (x-64)^3

    Evaluating at 64 this becomes 4.158883083 .

    The first four terms of the taylor series expansion of ln(x) about the point x=10 are given by

    -1 + ln(10) + (1/10) x – (1/200)(x-10)^2 + (1/3000)(x-10)^3

    Evaluating at x=10 this becomes 2.302585093 .

    The approximation of log(64) is therefore

    4.158883083 / 2.302585093 = 1.806179974

    Of course, I used a calculator! but the point is it can be done without one:) Even in the 17th century people like Napier would have had very extensive tables to work from… which would have been very valuable because they were so difficult and time consuming to make. In addition to logarithmic tables, tables of trigonometric and other transcendental functions were also highly sought after. The more comprehensive, the more valuable they would have been.

  11. Xedo the Cat

    There's no trick, but there are techniques to approximate. For example, what is the square root of 30,000?

    Well, you know that the square root of 10,000 is 100
    You know the square root of 40,000 is 200
    So, the square root of 30,000 is about 175.

    (Actually, it turns out to be slightly more than 173)

    You can apply similar techniques to find nth roots.

  12. TheFutureIsByzantine

    Kraftwerk were so fucking fun and humorous. You’d never get fucking U2 writing a great song about something so everyday as using a calculator.

  13. forgetyourrestraints_x

    Sum calculators indeed let you enter certain equations and "just" give you an answer – but that is NOT what "programmable" is about. "Programmable" just means that instead of having to perform the same repeating steps over and over again, you can "program" them into your calculator if you have to solve lots of similar problems. YOU have to program those steps, so you have to know how to solve the problem in the first place :-)

  14. machiner6

    And I love robots! That’s why I was fixated for a time on WALL-E. My career choice is to create all robots and other machines from Science fiction, then selling them.

  15. pacman3k

    Does anyone know what is this version and was it ever released??? (this is definitely not the 7″ mix from the 81 single)…

  16. machiner6

    nobody I know except my dad know what this band is. I can’t even find a CD of them at 1/2 Price Books!

  17. machiner6

    yeah, you can’t see those special effects like the buttons or the full view of the calculator at a live concert. this something only visible on televison.

  18. TheMRious

    me too. the only band I love like Kraftwerk actually, is one hiting strong in Italy. Search SWAVE IN THE FUTURE. is very different

  19. MR
  20. Linda S
  21. Ashanza

    You can use a Taylor series or a table of values

    For example for sine for values close to 0 rad:

    sin x = x – x^3/3! + x^5/5! – x^7/7! … you can add more terms as necessary

  22. Hi!

    You need to check if it needs a cable or if it has an infrared sensor and your computer would need to have one as well.

    I suggest that you take a read at its instructions because you may need to buy a cable if it is possible to do what you want to.

  23. † ♥Jesus Blood Never Fails Me

    A calculator is really just a very simple version of your computer.
    It works by "on/off" if electricity is passing it is "on" . There are a bunch of complex circuits inside (creating a program), and if electricity passing through that circuit to a "gate" then that gate is "on."
    It works by binary code –> on/off. e.g. 11000111101010111001
    That is binary code.

    Using this binary code each # has it's own binary code sequence.
    example: 6 decimal= 110 binary

    Your calculator is programmed to add and subtract. using these gates.
    Example using the "And Gate"
    If 4 and + is pressed then send signal to next gate.

    Your calculator stores the code in memory (bits) 8 bits = 1 Byte
    1000 000 Bytes = 1 MegaByte (MB)
    1 000 000 MB = 1 GigaByte (GB) — looking familiar? (Ok, calculator memory not as big as 1 GB, that's for computers, but you understand).

    so, every code in your computer/calculator is stored in these bits.
    That's why if you spill liquid inside, it shortcircuits the circuit (damaging it- the connections break apart) and breaks a connection in the programming) ruining your calculator.

    OK, I know I explained really badly, but it's the best I could do. I took a course in computer engineering 2 years ago, so I vagely remember the very specific details, I only remember the general stuff. People write books about this, and it's hard to explain in a few small paragraphs. You can go to google and type "how calculators work" and try researching this yourself.

  24. machiner6

    yeah, KW made robot mannequins of themselves for “We are the Robots”. Looks pretty impressive.

  25. MadeInFinland44

    This is weird.

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