Question about Casio FX-115ES Scientific Calculator

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Here is the manual for your calculator with instructions:

http://support.casio.com/manualfile.php?rgn=1&cid=004001004

Posted on May 23, 2011

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Posted on Jan 02, 2017

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As an example, to calculate the natural logarithm of 2, press 2nd [ln] 2 ) ENTER . If the calculator displays "ln(2)" then press diamond ENTER to convert the symbolic result to numeric.

If you want the results to always come out in numeric form, press MODE, down-arrow to the

If you want the results to always come out in numeric form, press MODE, down-arrow to the

Mar 13, 2014 | Texas Instruments TI-89 Calculator

To calculate IRR and NPVEnter the cash flows as follows, remembering the sign convention:

I did not come up with this solution. Just found it for you.

- Clear previous data by pressing
**fXY**and**fCLX.** - Enter the cash flow at time zero using
**# gPV**[**# CF0**]. - Enter subsequent cash flows using
**# gPMT**[**# CFj**]. - If a cash flow is repeated, enter the number of times it is repeated (including the first time you just entered) using
**# gFV**[**# Nj**]. For example, three equal flows in a row would be entered as**3 Nj**. - When you have entered your last cash flow:
- If you are calculating an NPV, enter your interest rate as
**# i**(consistent with interval between cash flows) followed by**fPV**[**NPV**]. - If you are calculating an IRR, enter
**fFV**[**IRR**].

I did not come up with this solution. Just found it for you.

Apr 04, 2011 | HP 12c Calculator

Your key sequence is calculating 5*5, which is 25. If you press * again, you will get 50, which is 2*5*5. The second ENTER lifts the 5 into Y, leaving two copies of 5 on the stack, which get multiplied together.

To calculate 2*5, press 2 ENTER 5 * . Note only one ENTER, used to separate numbers.

To calculate 2*5, press 2 ENTER 5 * . Note only one ENTER, used to separate numbers.

Mar 22, 2011 | HP 12c Calculator

You can calculate the log of x to any base b by calculating log(x)/log(b) or ln(x)/ln(b). So, to calculate log 5 to the base 3, press

LOG 5 ) / LOG 3 ENTER

or

LN 5 ) / LN 3 ENTER

LOG 5 ) / LOG 3 ENTER

or

LN 5 ) / LN 3 ENTER

Jan 25, 2011 | Texas Instruments TI-83 Plus Calculator

Here is a detailed account of how to calculate the determinant of a square matrix.

I assume you know how to define your matrix, but I will repeat it here for others who might not know. You can skip to**Calculation**

1.Turn Calculator ON. If there are no icons, press [MENU].

Data Entry

2.Use arrows to highlight [MAT] icon. Press [ENTER]

3.Highlight the first line where it says Mat A. Use the right arrow to enter the dimensions of Matrix A. Enter 3 and press [EXE]. The cursor moves to the second dimension. Press 3 and press [ENTER].

4. The matrix entry screen appears.

5. Enter first matrix coefficient a_11 and press [ENTER]

6. Enter a_12 and [ENTER]

.....

Key in last coefficient a_33 and press [ENTER]

**Calculation**

Press [MENU] and [RUN]

Press [OPTN][F2:MAT][F3:Det] Command echoes on screen as**det**

Press [F1:Mat] echoes on screen as Mat; screen shows**det Mat**

Press [ALPHA] A The screen displays**det Mat A**

Press [ENTER] to calculate the determinant.

**If the matrix is not square, you cannot calculate its determinant.**

I assume you know how to define your matrix, but I will repeat it here for others who might not know. You can skip to

1.Turn Calculator ON. If there are no icons, press [MENU].

Data Entry

2.Use arrows to highlight [MAT] icon. Press [ENTER]

3.Highlight the first line where it says Mat A. Use the right arrow to enter the dimensions of Matrix A. Enter 3 and press [EXE]. The cursor moves to the second dimension. Press 3 and press [ENTER].

4. The matrix entry screen appears.

5. Enter first matrix coefficient a_11 and press [ENTER]

6. Enter a_12 and [ENTER]

.....

Key in last coefficient a_33 and press [ENTER]

Press [MENU] and [RUN]

Press [OPTN][F2:MAT][F3:Det] Command echoes on screen as

Press [F1:Mat] echoes on screen as Mat; screen shows

Press [ALPHA] A The screen displays

Press [ENTER] to calculate the determinant.

Jan 03, 2011 | Casio FX-9750GPlus Calculator

When
you press the OPTN key you see Tabs at the bottom of the screen. The
second one from the left should be the submenu for matrix operations..
When you press F2:MAT, the new tabs are Mat, M>L (Matrix to List),
det (command to calculate the determinant etc.

Here is a detailed account of how to calculate the determinant of a square matrix.

I assume you know how to define your matrix, but I will repeat it here for others who might not know. You can skip to**Calculation**

1.Turn Calculator ON. If there are no icons, press [MENU].

Data Entry

2.Use arrows to highlight [MAT] icon. Press [ENTER]

3.Highlight the first line where it says Mat A. Use the right arrow to enter the dimensions of Matrix A. Enter 3 and press [EXE]. The cursor moves to the second dimension. Press 3 and press [ENTER].

4. The matrix entry screen appears.

5. Enter first matrix coefficient a_11 and press [ENTER]

6. Enter a_12 and [ENTER]

.....

Key in last coefficient a_33 and press [ENTER]

**Calculation**

Press [MENU] and [RUN]

Press [OPTN][F2:MAT][F3:Det] Command echoes on screen as**det**

Press [F1:Mat] echoes on screen as Mat; screen shows**det Mat**

Press [ALPHA] A The screen displays**det Mat A**

Press [ENTER] to calculate the determinant.

**If the matrix is not square, you cannot calculate its determinant.**

Here is a detailed account of how to calculate the determinant of a square matrix.

I assume you know how to define your matrix, but I will repeat it here for others who might not know. You can skip to

1.Turn Calculator ON. If there are no icons, press [MENU].

Data Entry

2.Use arrows to highlight [MAT] icon. Press [ENTER]

3.Highlight the first line where it says Mat A. Use the right arrow to enter the dimensions of Matrix A. Enter 3 and press [EXE]. The cursor moves to the second dimension. Press 3 and press [ENTER].

4. The matrix entry screen appears.

5. Enter first matrix coefficient a_11 and press [ENTER]

6. Enter a_12 and [ENTER]

.....

Key in last coefficient a_33 and press [ENTER]

Press [MENU] and [RUN]

Press [OPTN][F2:MAT][F3:Det] Command echoes on screen as

Press [F1:Mat] echoes on screen as Mat; screen shows

Press [ALPHA] A The screen displays

Press [ENTER] to calculate the determinant.

Dec 13, 2010 | Casio FX-9750GPlus Calculator

Use the ^ key in the rightmost column, above the divide key.

Enter or calculate x, press ^, then press 3 or 4, then press ENTER or continue on with the calculation.

For example, to calculate 2-cubed: 2 ^ 3 ENTER will produce 8.

Enter or calculate x, press ^, then press 3 or 4, then press ENTER or continue on with the calculation.

For example, to calculate 2-cubed: 2 ^ 3 ENTER will produce 8.

Sep 02, 2010 | Texas Instruments TI-83 Plus Calculator

The software for your calculator may need to be updated. You can get the update from the manufacture's website under the download or support tab.

Nov 16, 2009 | Texas Instruments TI-86 Calculator

Hello,

I assume yoy know how to define your matrix, but I will repeat it here for others who might not know. You can skip to**Calculation**

1.Turn Calculator ON. If there are no icons, press [MENU].

Data Entry

2.Use arrows to highlight [MAT] icon. Press [ENTER]

3.Highlight the first line where it says Mat A. Use the right arrow to enter the dimensions of Matrix A. Enter 3 and press [EXE]. The cursor moves to the second dimension. Press 3 and press [ENTER].

4. The matrix entry screen appears.

5. Enter first matrix coefficient a_11 and press [ENTER]

6. Enter a_12 and [ENTER]

.....

Key in last coefficient a_33 and press [ENTER]

**Calculation**

Press [MENU] and [RUN]

Press [OPTN][F2:MAT][F3:Det] Command echoes on screen as**det**

Press [F1:Mat] echoes on screen as Mat; screen shows**det Mat**

Press [ALPHA] A The screen displays**det Mat A**

Press [ENTER] to calculate the determinant.

**If the matrix is not square, you cannot calculate its determinant.**

Hope it helps..

I assume yoy know how to define your matrix, but I will repeat it here for others who might not know. You can skip to

1.Turn Calculator ON. If there are no icons, press [MENU].

Data Entry

2.Use arrows to highlight [MAT] icon. Press [ENTER]

3.Highlight the first line where it says Mat A. Use the right arrow to enter the dimensions of Matrix A. Enter 3 and press [EXE]. The cursor moves to the second dimension. Press 3 and press [ENTER].

4. The matrix entry screen appears.

5. Enter first matrix coefficient a_11 and press [ENTER]

6. Enter a_12 and [ENTER]

.....

Key in last coefficient a_33 and press [ENTER]

Press [MENU] and [RUN]

Press [OPTN][F2:MAT][F3:Det] Command echoes on screen as

Press [F1:Mat] echoes on screen as Mat; screen shows

Press [ALPHA] A The screen displays

Press [ENTER] to calculate the determinant.

Hope it helps..

Oct 14, 2009 | Casio FX-9750GPlus Calculator

Texas Instruments TI-86 Statistics How-To Information
The following instructions should allow you to calculate the mean and standard deviation using a TI-86 calculator.

- Press STAT
- Select EDIT
- Enter data into a list: [2.32 ENTER 2.43 ENTER 2.39 ENTER, etc.] Continue until all data have been entered. (use arrows keys to go to the y value, if any)
- EXIT until you reach the main ("blank") screen. (If you try to calculate while you're in the data menu, it thinks you're still trying to enter data!)
- Press STAT
- Select CALC
- Select OneVa
- Select LIST, NAMES, xStat(F2), Press ENTER
- The calculator provides Max, Min, Mean, Standard Deviation, Sum, Sigma, etc. You will be primarily interested in the Mean and Standard Deviation (sx).

Nov 15, 2007 | Texas Instruments TI-86 Calculator

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