I'm trying to find 3.28?50.42, that is: 50.42 squared to 3.28. (3.28 is small and higher up than a normal number) NOT 3.28 X ?50.42 My textbook tells me to find the INV and Yx key on my calculator, but I have neither. (Yx means big Y little X high up, Y to the power of x) I use a Casio fx-991MS scientific calculator.
If you mean the 3.28th root of 50.42, press
3 . 2 8 SHIFT [xth-root] 5 0 . 4 2 =
xth-root is the shifted function of the "^" key.
SOURCE: how to calculate log value in calculator with different base value
In any scientific calculator log2(n) can be calculated with either ln or log function as
follows
Log2(n)= ln(n) / ln(2)
Or
Log2(n)=log(n) / log(2)
both will give nearly the same answers
SOURCE: How can I solve a fraction like 1/2 plus 9/3 on a
Use the [a b/c] key to separate the elements of a fraction.
To enter 1/2 : press 1, press [a b/c], then press 2
1/2+ 9/3 : 1[a b/c]2 + 9[a b/c] 3 [=]
By the way, why do you keep 9/3 as a fraction when you can have it as an integer? Not that it makes a difference to the calculator.
SOURCE: can you please help me
This will show you how to do statistics (calculate average, standard deviation, regressions etc.) as to the mode and median refer to the definitions.
TO COMPUTE STANDARD DEVIATION AND 2-VAR STATISTICS.
I assume
you
know the theory. I will show you the key strokes
For
1-Var statistics
Press [MODE][3:STAT] [1:1-VAR].
You are ready to
enter values in the X column.
Enter a number and press [=]. Cursor
jumps to second number to enter.
Keep entering numbers and pressing
[=] till all numbers are in. Press the [=] key after the
last one.
Press
[AC] key to clear the screen.
Press
[SHIFT] [STAT] (above digit 1.) then [5:Var]. Screen displays the
statistical variables 1:n ;2: x bar; 3: x sigma n; 4:x sigma n-1.
Press
the
number corresponding to the statistical value you want, ex 1:n . The
variable appears on screen. Press [=] and it will be displayed.
To
display another variable press [SHIFT][STAT][5:Var][ 1,2, 3, or 4] .
To access the sum of squares sigma x^2 and the sum of data sigma x
press[SHIFT][STAT][4:SUM] then [1: for sigma x^2] or [2: for sigma x].
Press [SHIFT][STAT][6:MinMax] to access minX and maxX.
For 2-var statistics
To
perform
2 variable statistics you press [MODE][3:STAT] and any of the
other regression options (except 1:1-Var). A two column template opens
where you enter the X and Y values. When finished entering data, press
[SHIFT][STAT][5:Var]. to access the different statistics. As I assumed
above, you should be able to
recognize what each variable means.
SOURCE: how to calculate 17^23mod55 in casio scientific
Using the Windows calculator in scientific view, we get:
17^23 = 19,967,568,900,859,523,802,559,065,713
which is 29 digits long, ie much longer than the capacity of most calculators.
Because both 17 and 23 are prime numbers, it isn't possible to simplify this calculation, so you will need to use find a calculator that has sufficient capacity to be able to handle numbers of this length.
The xnumbers add-in for Microsoft Excel can also be useful for this sort of calculation (do an internet search for it).
Using the Windows calculator, MOD55 of the above number is 18.
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