# i need help on scientific calculator press

#### hkra

Joined Jul 3, 2005
18
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

#### hkra

Joined Jul 3, 2005
18

#### n9xv

Joined Jan 18, 2005
329
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.

#### hgmjr

Joined Jan 28, 2005
9,029
Originally posted by hkra@Jul 8 2005, 09:44 AM
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[post=8982]Quoted post[/post]​
The users manual for the calculator would be the best place to look for this information.

hgmjr

#### hkra

Joined Jul 3, 2005
18
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