Question about Casio FX-250HC Calculator

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I can't get the calculator out of the exponent mode. ex. It gives me 7 -03 rather than .007.

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Hi,
You must change the number display to FIX. Press [MODE][7:] followed by a number betwee 0 and 7. This will set the number of decimal digits. Be warned that the Indicator FIX will be displayed on the screen.
This information is for the FX250D, but I trust it is also valid for the FX-250HC. If it is not, just look in your manual. If you cannot find yours, do not blame me, I cannot get hold of a manual for this calculator.

You can always take the time to play with the [MODE] key followed by [.] or a number. When you press the mode + number, look on the screen to see what indicator appears (deg, Fix, Rad) The one that makes FIX appaear is the one that gets you out of the exponential scientific mode.

Good luck

Posted on Nov 14, 2009

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1 Answer

How to enter exponents ex. 10 to the 4th power???


Press 1 E 4

The E means "times 10 to the" so 1E4 is 1*10 to the 4th 10 to the 4th.

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Here is screen capture of what it will look like.

0da174e.jpg

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Is it possible to calculate cube root or higher with BA ii plus?


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If the exponent is 1/3, 1/4, 1/5, 1/6 you calculate the cubic root, the 4th root and so on.
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1 Answer

Decimals in the exponents for TI-30Xa


Hi,
You have a key labeled [Y to the x], use it for all the powers or roots that do not have a dedicated key or key sequence. Let the key be [^]

Ex: 13.675 to the power 1.33 is entered as 13.675 [^] (1.33) [=].
The result is 32.41778634
Ex: (-64)[^](2/3) [=] gives 16 as result. The (-) is the change sign key
Ex: (2.87655)^(-6.778) is entered as 2.87655 [^] ( (-) 6.778 ) [=] 0.0007758
The (-) is the change sign (or the negative of), not the regular minus. When you have a negative exponent or a complicated exponent, it is safer to enclose the whole exponent inside parentheses.

Hope it helps.
Thank you for using FixYa

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1 Answer

Can you put the TI 34ii into scientific mode


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1 Answer

Anything I type in I get A number with an exponent!


that must be because you calculator is in scientific/eng mode. press [MODE], then select normal.

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2 Answers

1.19x10-4=?


You can download the guidebook for this calculator from TI here.

From page 16:
To enter a number in scientific notation:
1) Enter up to 10 digits for the base (mantissa). If negative, press the +/- key. (The key has two curvy arrows between the + and - but I can't do that on my keyboard.)
2) Press the EE key.
3) Enter a 1 or 2-digit exponent. If negative, press +/- either before or after entering exponent.

They give the example 1.2345 +/- EE +/- 65 which would display -1.2345 -65.

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there is a ^ aboe the divided sign. you can use that
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