I dont understand whats wrong with my function buttons. When I type in for example sin(4) and press enter, it shows the same thing "sin(4)", the same for cos and tan!!! im going crazy here!!!!!!!!!!!!!!

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The answer that you have received in actuality is correct. However, it is in exact form when the answer that you were looking for was an approximation (decimal form) answer. To achieve this all you have to do is hit the alpha button (the yellow button with a diamond in the center) and then enter which will give you your desired answer :-)

Posted on Jan 15, 2008

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Posted on Jan 02, 2017

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Choose one of the inequality type graphs

by pressing F3 Type.

Press F6 for the arrow on the right, you will get the other types

For example press F1 to select the Y greater than type graph.

Notice that on the top line Graph Func: Y>. From now on all the graphs you will draw will be Y> some function in X.

Start entering the function. As you start the screen will show Y1>

Enter the function for example sin(X^2). Use the X, theta, T to input the X variable.

Press the EXE key to complete the function line. The screen will look like on the following screen grab

Press the F6 key Draw to get your graph and the shaded region, as on the following picture:

by pressing F3 Type.

Press F6 for the arrow on the right, you will get the other types

For example press F1 to select the Y greater than type graph.

Notice that on the top line Graph Func: Y>. From now on all the graphs you will draw will be Y> some function in X.

Start entering the function. As you start the screen will show Y1>

Enter the function for example sin(X^2). Use the X, theta, T to input the X variable.

Press the EXE key to complete the function line. The screen will look like on the following screen grab

Press the F6 key Draw to get your graph and the shaded region, as on the following picture:

Jun 22, 2017 | Casio FX-9750GII Graphing Calculator

When you are entering the expression, do not use implied multiplication. For example if your expression contains x times sin(X), enter it as X*SIN(X), otherwise the calculator will look for a function XSIN and will not find it, giving you the error message. No need to enter the explicit multiplication sign if you have a number to the left of the function. Also be wary of entering X3 for 3 times X.

Apr 13, 2011 | Texas Instruments TI-89 Calculator

Press the SIN, COS, or TAN key, type in the angle, and press ENTER. For example, to calculate the sine of 45 degrees, press SIN 4 5 ENTER

Make sure you have the angular mode set to degrees. It's the third line on the mode screen, which you get by pressing the MODE key.

Make sure you have the angular mode set to degrees. It's the third line on the mode screen, which you get by pressing the MODE key.

Jan 30, 2011 | Texas Instruments TI-84 Plus Silver...

[email protected] My manual is 75 pages. I can email it to you. Please put Casio FX-115ES as the subject. Awaiting your response.

fx-115ES User's Guide

About this Manual

ā¢ The MATH mark indicates an example that uses Math format,

while the LINE mark indicates Linear format. For details about

input/output formats, see "Specifying the Input/Output Format".

ā¢ Keycap markings indicate what a key inputs or what function it

performs.

Example: 1, 2, +, -, !, A, etc.

ā¢ Pressing the 1 or S key followed by a second key performs

the alternate function of the second key. The alternate function is

indicated by the text printed above the key.

ā¢ The following shows what the different colors of the alternate

function key text mean.

If key marking

text is this color: It means this:

Yellow

Press 1 and then the key to access

the applicable function.

Red

Press S and then the key to input the

applicable variable, constant, or symbol.

Purple (or enclosed Enter the CMPLX Mode to access the

in purple brackets) function.

Green (or enclosed Enter the BASE-N Mode to access the

in green brackets) function.

ā¢ The following shows an example of how an alternate function

operation is represented in this User's Guide.

Example:1s(sin-1)1=

Indicates the function that is accessed by the key

operation (1s) before it. Note that this is not part

of the actual key operation you perform.

sin-1{D}

Keycap function s

Alternate function

fx-115ES User's Guide

About this Manual

ā¢ The MATH mark indicates an example that uses Math format,

while the LINE mark indicates Linear format. For details about

input/output formats, see "Specifying the Input/Output Format".

ā¢ Keycap markings indicate what a key inputs or what function it

performs.

Example: 1, 2, +, -, !, A, etc.

ā¢ Pressing the 1 or S key followed by a second key performs

the alternate function of the second key. The alternate function is

indicated by the text printed above the key.

ā¢ The following shows what the different colors of the alternate

function key text mean.

If key marking

text is this color: It means this:

Yellow

Press 1 and then the key to access

the applicable function.

Red

Press S and then the key to input the

applicable variable, constant, or symbol.

Purple (or enclosed Enter the CMPLX Mode to access the

in purple brackets) function.

Green (or enclosed Enter the BASE-N Mode to access the

in green brackets) function.

ā¢ The following shows an example of how an alternate function

operation is represented in this User's Guide.

Example:1s(sin-1)1=

Indicates the function that is accessed by the key

operation (1s) before it. Note that this is not part

of the actual key operation you perform.

sin-1{D}

Keycap function s

Alternate function

Jan 19, 2011 | Casio FX-115ES Scientific Calculator

The calculator is set up to produce exact results. If you want the expression to be evaluated put a decimal mark at the end of the 4.

to making 4 a floating point number instead of integer.

Alternatively, press the [MODE] key. Scroll down through the pages of options until you reach the line labeled Exact/Approx. When cursor is on that line, use the right arrow key to open the menu. Select [3:Approximate]. Press [ENTER] to save.

to making 4 a floating point number instead of integer.

Alternatively, press the [MODE] key. Scroll down through the pages of options until you reach the line labeled Exact/Approx. When cursor is on that line, use the right arrow key to open the menu. Select [3:Approximate]. Press [ENTER] to save.

Aug 25, 2010 | Texas Instruments TI-89 Calculator

You would press on the SIN key, "sin(" should come on the display, then enter the value, for example 3.5 or -1 so that the display shows

sin(3,5) or sin(-1) for example.

remember to close the sin with the ) on the end.

**sin(-1) = -0.841470985**

sin(3,5) or sin(-1) for example.

remember to close the sin with the ) on the end.

Feb 16, 2010 | Texas Instruments TI-30XA Calculator

Hi,

If you do not like PI/4 replace it with 0.25 * PI. If you do not like 1/2 use 0.5. It does not make any difference to the calculator.

This is what you get.

Since the sine function varies between -1 and 1, no need to have the window Y values too large. Change the Window dimensions.

Here is what you get now.

Do not worry if you do not see the labels x and y, one has to configure the calculator to show them. This should not be your concern right now.

Hope it helps.

- First clean the calculator configuration to prevent errors. Press [2nd][STATPLOT][4:PlotsOff][ENTER]. Calculator displays Done.
- Press [Y=] to open the function editor.
- On line Y1= type in the expression

If you do not like PI/4 replace it with 0.25 * PI. If you do not like 1/2 use 0.5. It does not make any difference to the calculator.

This is what you get.

Since the sine function varies between -1 and 1, no need to have the window Y values too large. Change the Window dimensions.

Here is what you get now.

Do not worry if you do not see the labels x and y, one has to configure the calculator to show them. This should not be your concern right now.

Hope it helps.

Nov 10, 2009 | Texas Instruments TI-84 Plus Calculator

Hello,

1.Set the correct angle unit required by your problem: degrees, radians, or grads. [SHIFT][MODE] [3:deg] or [4:Rad]

2. Press the key for the function COS, SIN, or TAN

[COS] displays Cos(

3.Enter the angle 12 deg Screen shows cos(12

Close the right parenthesis ) Screen shows cos(12)

4.Press [=] Screen displays 0.9781

If you want the inverse trigonometric functions you access them with arccos [SHIFT] [COS] (cos^-1)

arcsin [SHIFT][SIN] (sin^-1)

actan [SHIFT][TAN] (tan^-1)

You have to know the**principal domain** for the inverse trigonometric functions (see any book on trigonometry) to understand the results.

Hope it helps.

1.Set the correct angle unit required by your problem: degrees, radians, or grads. [SHIFT][MODE] [3:deg] or [4:Rad]

2. Press the key for the function COS, SIN, or TAN

[COS] displays Cos(

3.Enter the angle 12 deg Screen shows cos(12

Close the right parenthesis ) Screen shows cos(12)

4.Press [=] Screen displays 0.9781

If you want the inverse trigonometric functions you access them with arccos [SHIFT] [COS] (cos^-1)

arcsin [SHIFT][SIN] (sin^-1)

actan [SHIFT][TAN] (tan^-1)

You have to know the

Hope it helps.

Nov 05, 2009 | Casio Office Equipment & Supplies

if you want to square sin(3), press:

(

sin

3

)

)

^

2

(

sin

3

)

)

^

2

Sep 24, 2007 | Texas Instruments TI-89 Calculator

here are the steps in changing it from radian to degrees

1. turn on your TI-83 plus

2. press the MODE button near the top of your calculator

3.go down to options and move the highlight from radian to degree, press enter and clear

you're good to go

1. turn on your TI-83 plus

2. press the MODE button near the top of your calculator

3.go down to options and move the highlight from radian to degree, press enter and clear

you're good to go

Feb 17, 2007 | Texas Instruments TI-83 Plus Calculator

May 21, 2014 | Texas Instruments TI-89 Calculator

Feb 17, 2014 | Texas Instruments TI-89 Calculator

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