Question about M2K Garfield: It's All About Math Math (Ages 7-9) (GRF16AM201) for PC

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The function is: f(n) = (n-th triangular number) ^ 2

So, f(1) = (first triangular number) ^ 2

the '^ 2' means "multiply the number by itself", e.g., '3^2' is '9'.

And, f(2) = (second triangular number) ^ 2

and, f(3) = (third triangular number) ^ 2

So, what is a "triangular number" ?

Do an Internet search for "definition triangular number",

and you may find the web-page;

http://www.mathsisfun.com/definitions/triangular-number.html

which gives a definition, plus pictures to help you visualize why they are called "triangular". Hint: a "tri-angle" has 3 sides, while a "quad-rangle" has 4 sides.

Posted on Jan 07, 2010

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Posted on Jan 02, 2017

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The nth-root function is the right-shifted function of the square-root key, second column from the left, fifth row from the top.

In RPL mode, to calculate the third root of eight, press 8 ENTER 3 right-shift [nth-root] and get 2.

In algebraic mode, press right-shift [nth-root] 3 right-shift [,] 8 ENTER and get 2. (The comma is the right-shifted function of the SPC key on the bottom row.)

In RPL mode, to calculate the third root of eight, press 8 ENTER 3 right-shift [nth-root] and get 2.

In algebraic mode, press right-shift [nth-root] 3 right-shift [,] 8 ENTER and get 2. (The comma is the right-shifted function of the SPC key on the bottom row.)

Oct 01, 2012 | HP 50g Graphic Calculator

Formulas are used to specify calculations based on values in designated cells. Excel supports basic calculations as well as statistical, trigonometric and other specialized functions.

Formulas used in Excel must follow a certain syntax.

- All formulas begin with an equals sign
**(=)**. - Some formulas use operands such as
**+,-, *,/**for addition, subtraction, multiplication or division.

For example, the formula =A1+A2+A3 would add the contents of cells A1, A2 and A3. - Other formulas refer to different functions such as SUM, AVERAGE and others.

For example, the formula =SUM(A1:A3) would add the contents for the range A1 through A3. - Formulas can be
**combined with operands.**

For example, the formula =10*SUM(A1:A3) would add the contents cells A1 through A3 and multiply them by 10. - Functions can
**be nested within each other.**

For example, the formula =SQRT(10*SUM(A1:A3)) would take the square root of ten times the sum of cells A1 through A3. When functions are nested, it is important that the number of left parentheses match the number of right parentheses.

Aug 19, 2011 | Microsoft EXCEL 2004 for Mac

Square root of 39: Press 3 9 [square-root] =

[square-root] is the key just to the left of the divide key.

Cube root of 9482: Press 9 4 8 2 2nd [cube-root] =

[cube-root] is the shifted function of the 0 key.

For other roots, you can use the [nth-root] function, the shifted function of the key above the divide key. For example, to calculate the fourth root of 16, press 1 6 2nd [nth-root] 4 =

[square-root] is the key just to the left of the divide key.

Cube root of 9482: Press 9 4 8 2 2nd [cube-root] =

[cube-root] is the shifted function of the 0 key.

For other roots, you can use the [nth-root] function, the shifted function of the key above the divide key. For example, to calculate the fourth root of 16, press 1 6 2nd [nth-root] 4 =

Aug 11, 2011 | Texas Instruments TI-30XA Calculator

Hello,

The following code will dynamically calculate the some of the first two fields:

Enter first number:

Enter second number:

Their sum is:

Best Regards, Ben

The following code will dynamically calculate the some of the first two fields:

Enter first number:

Enter second number:

Their sum is:

Best Regards, Ben

Jun 29, 2011 | Computers & Internet

Use the nth-root function, which is the shifted function of the y^x key just above the divide key. For example, to calculate the 5th root of 32, press 32 2nd [xth-root] 5 =

Dec 07, 2010 | Texas Instruments TI-30XA Calculator

Yes and here is how to do 1-var statistics and 2-var statistics. Please read the whole post. 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.

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 [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.

Nov 06, 2010 | Casio FX-115ES Scientific Calculator

Use the function =sum() to add numbers. To sum, for example, all of column A, enter in the formula bar =sum($A:$A). You can use the subtotal function within the range you are adding and the answer will not count towards the final total.

Mar 14, 2009 | Microsoft Excel for PC

Hello,

There is no nth root button per se. But to take the nth root of a number is equivalent to raising the number to the power 1/n

Nth root of X= X^ (1/n)

Hope it helps.

There is no nth root button per se. But to take the nth root of a number is equivalent to raising the number to the power 1/n

Nth root of X= X^ (1/n)

Hope it helps.

Mar 13, 2009 | Texas Instruments TI-86 Calculator

Write down the number in cells for Example:

A1 (59) Without Brackets

A2 (50)

A3 (80)

A5 ? ANY Number

A6 ? ANY Number

A7 ? ANY Number

A8 =SUM(A1:A7) you will get total sum of above numbers on this A8 Cell which is auto sum whenever you change the value on above cell.

A1 (59) Without Brackets

A2 (50)

A3 (80)

A5 ? ANY Number

A6 ? ANY Number

A7 ? ANY Number

A8 =SUM(A1:A7) you will get total sum of above numbers on this A8 Cell which is auto sum whenever you change the value on above cell.

Feb 22, 2009 | Microsoft Computers & Internet

contact your math's tutor because your math's is PATHETIC,sir..

try findin the answer in r.s aggarwal

try findin the answer in r.s aggarwal

Mar 08, 2008 | Computers & Internet

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