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How to calculate 0.3log(base 2)0.3 using fx-991es calc

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k24674

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SOURCE: how can i calculate probability distributions

Hello,
Not knowing what kind of probability calculations you want to perform, I can only show you how to access the distributions that this calculator has to offer.
After you enter your data and do the usual statistics, you press SHIFT STAT and select 7:Distr. You get acces to
1: P(
2:Q(
3:R( and
4: X to t, the variate.

See the exemples in the Appendix to the user's manual, in particular #059.

Hope it helps.

Posted on Oct 28, 2009

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k24674

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SOURCE: how to calculate 0.3log(base 2)0.3 using fx-991ms

Your calculator knows only the decimal logarithms log or log_10 and the natural logarithms (ln or log in base e).
So you cannot compute directly the logarithms in any bases other than 10 and e.
A workaround consists in using the relation
log in base b of a number a (log_b (a))
log_b(a)= (log_10(a) ) / (log_10 (b))
or the relation
log_b(a)= ln(a)/ln(b)

log_2(0.3)=log(0.3)/log(2) where log is log in base 10
Similarly
log_2(0.3)=ln(0.3)/ln(2)
As to the multiplicative factor you had at the beginning of your expression, just multiply the value obtained by one on the formulas above (both formulas will give the same result) by 0.3


Posted on Jul 24, 2010

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k24674

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SOURCE: I am trying to do a financial calculation using a casio fx-83es calculator. The calc is to do with average rate of return each year. the calc is 5 square root symbol 1.734= 1.1164? How do I calculate

You should be careful with the symbols you are using. Roots are different. When you say `5 square root symbol 1.734` you are in fact doing the following: 5x square root(1.734) which is 6.5850.
What you need to do is extract the fifth root of 1.734.
The key to use to extract a root of index n (in your case 5) is to press the digit key for the index, then press [2nd][Y^x]. On the calculator near the [y^x] key you can see xRoot. This is the universal root key.

Posted on Jul 17, 2012

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Could you please help me .. Is it possible to calculare irr with casio fx 82 ms? Thank you very much


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support.casio.com/pdf/004/fx570MS_991MS_E.pdf

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Is there a verify mode on the CASIO fx-991es plus calculator?


You should try to explore the calculator to find its capabilities. You can also read the manual. Everything is in it.
Press the Mode button, then the down arrow key. On the second page of the mode list you find 2:Verif

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Floating point number into binary in fx-991MS


I checked in the manual and found that this calculator does not support Base-N calculations. On the FX-991ES Plus, which has a Base-N mode, fractions , exponents, and other floating points are not supported. The non-integer part is chopped off.

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I use casiofx-991ES,its numbers looking upside down.How can i fix it?


I had the same problem with my casio fx-991ES calculator, i tried initializing the calculator by keying in shift9(CLR)3(all)=(yes) but that didn't fix the display,so i opened the calculator and removed the battery for about 5days then put the battery back guess what the display started operating well! no more inverted display or numbers.if initializing the calculator does not fix the problem,take out the battery for some few days then put it back in that should fix the problem.cheers

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PRIME FACTORIZATION USING CASIO FX-991ES PLUS


If it does not have the FACT key, you must factor by hand: Divide by 2, then by 3, 5, 7 etc.

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1 Answer

How can i calculate log inverse with my fx-991ES plus


By 'log inverse', you presumably mean the inverse of the logarithm function. There are two logarithm functions on most scientific calculators. Firstly [ln], or natural logarithms, to the base e, where the inverse is e^x. Secondly [log], or logarithms to the base 10, where the inverse is 10^x.

Example 1 : ln(2) = 0.69314718 so e^0.69314718 = 2
Example 2: log(2) = 0.301029995 so 10^0.30102995 = 2

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3 Answers

How to calculate 0.3log(base 2)0.3 using fx-991ms calc


Your calculator knows only the decimal logarithms log or log_10 and the natural logarithms (ln or log in base e).
So you cannot compute directly the logarithms in any bases other than 10 and e.
A workaround consists in using the relation
log in base b of a number a (log_b (a))
log_b(a)= (log_10(a) ) / (log_10 (b))
or the relation
log_b(a)= ln(a)/ln(b)

log_2(0.3)=log(0.3)/log(2) where log is log in base 10
Similarly
log_2(0.3)=ln(0.3)/ln(2)
As to the multiplicative factor you had at the beginning of your expression, just multiply the value obtained by one on the formulas above (both formulas will give the same result) by 0.3


Jul 18, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

Casio fx-300es. How do you enter a variable? what button do you press to represent x in x+7=14 or any other problem with a variable. Everyone has a ti 84 and they have a button for x.


You have a way to enter the Variables A, B,C,D, Y and X.
Use the ALPHA key
For A use ALPHA change sign key (-), below the Fraction Template.
For B use ALPHA (degree ' ")
For C use ALPHA (HYP)
For D use ALPHA (SIN)
For X use ALPHA right )
For Y use , ALPHA (S-D) key
For =, use ALPHA and the key below the SHIFT key. May be marked CALC. The = is in the same color as the ALPHA on calculator. It should be to the upper right side of a key.

(I have an FX-991ES that is compatible with the FX-300ES, but since I do not have a picture of the FX-300ES calculator I cannot be more specific than I have been, lest I mislead you.)


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