i need help on scientific calculator press

Discussion in 'Homework Help' started by hkra, Jul 8, 2005.

  1. hkra

    Thread Starter Member

    Jul 3, 2005
    18
    0
    http://tinypic.com/6xrfgp.jpg

    see the picture

    how to calculate between 10-4

    my scientific calculator have no -4

    how to press can show me this formula?

    the answer is = 2.513 /_ 89.8º

    i just wanna know how to calculate the 10-4
     
  2. hkra

    Thread Starter Member

    Jul 3, 2005
    18
    0
    fx-570W
     
  3. n9xv

    Senior Member

    Jan 18, 2005
    329
    1
    On most calculators there is a key labeled "EXP" that stands for EXPONENT. The key is usually programed to mean "X 10 to the EXPONENT of" and then you press the negative key " - " and then press the number " 4 " key. So, in your problem it would be;

    2.513 then press "EXP" then press " - " then press " 4 ".

    You can also do it this way;

    Anytime you see the base 10 to a negative exponent, you must have enough zero's + 1 to equal the exponent, like this;

    10^-4 means .0001

    a decimal followed by three zero's and ALWAYS ending with a one.

    10^-6 means - - - .000001 - - - decimal then five zero's and a one.
     
  4. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    The users manual for the calculator would be the best place to look for this information.

    hgmjr
     
  5. hkra

    Thread Starter Member

    Jul 3, 2005
    18
    0
    great! i get the answer. thanks JoeJester ,n9xv and hgmjr
    sorry me forgot everything i have the last 2 subjects to resit before graduted

    but n9xv 10^ the ^ no such charracter on my scientific calculator
     
  6. hkra

    Thread Starter Member

    Jul 3, 2005
    18
    0
    thank you very much. i understood
     
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