Question about Casio FX-115ES Scientific Calculator

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I am solving equations with large negative exponents and my answers keep coming out to 0.0000. How do I fix this?

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

informatica
  • 1114 Answers

SOURCE: negative numbers

You can get the manual on the link below: http://world.casio.com/calc/download/en/manual/ If I understand your question this from page E-66 may help........

Posted on Aug 01, 2007

Mikey1963
  • 27 Answers

SOURCE: Exponents

the Xy button, 10 Xy 2 = 100 (10 x 10)

to do a neg exp you have two options, one use brackets if calculator has them.....

10 Xy (-2) = 0.01

or two inverse your number, ie: make 10 into 1/10th, use fraction entry on calculator.

1/10 Xy 2 = 10 Xy (-2) = 0.01

Posted on Jun 01, 2008

SOURCE: how do i solve Exponential

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Posted on Feb 06, 2011

  • 7993 Answers

SOURCE: im trying to graph a

To enter powers of trigonometric functions you must enclose the functions in parentheses and then apply the exponent to the whole. For example X1t =(sin T)^3 , Y1t=(cos T)^3 will give you a shape similar to a rhombus with concave sides. The symbol ^syands for the operation of raising to a power. The key is the one with the caret symbol ^ , and it is wedged between the xsqure and EXIT keys (third row of keys).
As regards the cotangent, use the equivalent definition cot(X)=1/tan(X).

Posted on Jul 26, 2011

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1 Answer

Dividing 2 different scientic equations into another


Sorry but you are using the word EQUATION incorrectly. All you have is two numbers you want to divide one by the other.
Enter the numerator 1EE (-) 14, press the division key / then enter the 5 EE (-) 12. Press the = sign.
Note: to enter the negative sign in the exponents, use the change sign key marked (-), (+/-) or [+/-] . Do not use the regular MINUS sign.
When you use the EE key, you must not enter the 10. It is understood because EE is a shortcut for *10^.

Apr 06, 2014 | Texas Instruments TI-30XA Calculator

1 Answer

How to solve an equation with negative exponent


You probably want to calculate the numerical value of some mathematical expression with numbers raised to negative exponents.
Just enter the expression as you would with positive exponents Except that before entering the value of an exponent press the change sign key, marked (-), or +/- or (+/-). Do not confuse the change sign with the usual minus sign, which is usually displayed bigger then the change sign. Make sure that the (-) is displayed before the value of the exponent. Use parentheses if necessary.

Feb 14, 2014 | Texas Instruments TI-30X Calculator

1 Answer

Just got a SHARP EL-531X, it won't do simple calculations with scientific notation, It keep saying


To enter the power of 10 with exponent use the Exp key followed by the exponent. If the exponent is negative, you must use the negation key (-) not the - key (for subtraction).
When you press the Exp key you do not type in the 10.

Mar 10, 2012 | Sharp Office Equipment & Supplies

1 Answer

Whenever I perform a quadratic regression and paste the equation into y1 the equation comes through with boxes as the exponents and I have to manually insert them. Why is this happening?


That's a bug in the latest version of the operating system.

Press MODE to bring up the mode screen. Press up-arrow to get to the second page. Keep pressing up-arrow to get to the top line. Use right-arrow to highlight CLASSIC. Press ENTER to save the change and then 2ND [QUIT] to exit. Now you should be able to paste the equation and get the exponents to come through properly.

Don't forget to switch back to MATHPRINT if you want it that way.

Nov 19, 2010 | Texas Instruments TI-84 Plus Silver...

1 Answer

How would you do negative exponents for scientific notation? example: (6.0 x 10^6)(2.0 x 10^4), I am required to use the EE button for my exponents since it's a scientific notation equation but I do not...


Use the (-) key for negative numbers (not just exponents) instead of the - key. The - is to subtract one value from another, (-) is to input a negative value.

Sep 09, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

Where is the exponent bottom?


the exponent button looks like ^ push that and type in the number. For some equations and also negative numbers you may have to put parentheses.
Ex, 9 * 7^(-5)

Jan 26, 2010 | Texas Instruments TI-36 X Solar Calculator

1 Answer

How do you make the calculator ti 30xa convert


I have a few questions and then I should be able to help you. In the equation you want to solve there is a letter g. Is this supposed to be there? Does this represent units such as grams? If this is the only units in this equation the answer will be mass not volume. Lets ignore the units and just punch in the numbers. Assuming the equation you want to solve is 3.70/2.50 x 10^-6. The buttons you need to push are 3.7/2.5 EE 6 [+/-] =. The EE button is the exponent button and the [+/-] button is the change sign button, located just below the 3. The change sign button changes the sign of the proceeding character, in this case it changes the 6 into a -6. This calculator will calculate the exponents before it does the multiplication or division so you don't need to use any parentheses for this equation. I hope this helps you out.

Jan 23, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

Trying to enter Chemistry equations and it won't work...


the way i enter my equations is a bit different from what you're doing, i use the fraction button to do division problems, i just feel it makes it easier to read.
anyway, the fraction button is on the far left, 3rd button down (it looks like a white box on top of a line, and below the line is another empty box). press that, and you can type 1.0x10^-14 on the numerator.
it seems that you haven't discovered the EXPONENT button. that button is on the same row as the fraction button, it looks like an x with a white box next to it. press that once you've typed out "1.0x10", and then type -14. the negative button btw is below the fraction button, and looks like this: (-)
press the right arrow twice on the circle thingy at the top of all the keys, and that'll advance you to the denominator. type 2.0x10^-5, using that nifty exponent key. press the equal sign and it'll solve it for you, all in scientific notation (the answer is 5x10^-10). the problem with this calculator is, it won't expand that answer for you with all the decimals and everything, but if its chemistry that shouldn't be a problem.
also, you can certainly use the "x10^x" button on the very bottom of the keypad (its next to the decimal button). by using this key, you won't have to press the exponent button since you can just type in the exponent directly next to the 10.

as for that negative log of 5.6, just input the negative, the log button is right next to the exponent button, and your number and yeah....it's that easy :]

i hope you like this caculator, it has so many functions (have you seen the size of the manual??)
good luck on your chemistry test!

Jun 06, 2009 | Casio FX-115ES Scientific Calculator

1 Answer

Negative answer when squaring a neg number


You must put all negative numbers in Parenthesis otherwise your calculator is not squaring the negative .

Apr 20, 2008 | Texas Instruments TI-85 Calculator

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