Question about Casio FX-115ES Scientific Calculator

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Posted on Jan 02, 2017

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The tangent of 0.8 is a number, not an angle.

Do you want 0.8 converted to DMS? If so, is it in degrees, radians, or grads? Or do you want the arctangent of 0.8 converted to DMS?

Do you want 0.8 converted to DMS? If so, is it in degrees, radians, or grads? Or do you want the arctangent of 0.8 converted to DMS?

Jun 26, 2013 | Casio FX-115ES Scientific Calculator

If you are working with radian angle unit or with the grad angle unit, it makes sense to 'get rid' of the DEG on calculator. Otherwise there is not point doing so as it is a reminder that the calculator is configured for degree. If you change the degree angle unit, it will be replaced by the one you will have chosen. What do you really want to do? Post a comment and we will see what can be done to please you.

Feb 25, 2011 | Casio FX-115ES Scientific Calculator

When using trigonometric functions (cos, sin, tan) and their inverses (arccos, arcsin, arctan) one must be aware that the result will depend on the default angle unit : radian, degree, or grad.

Apparently you are working with the degree as the angle unit, so you must configure the calculator for that unit. (See screen capture below)

Press [SHIFT][MODE] [3:Deg]

Apparently you are working with the degree as the angle unit, so you must configure the calculator for that unit. (See screen capture below)

Press [SHIFT][MODE] [3:Deg]

Jul 29, 2010 | Casio FX-115ES Scientific Calculator

To avoid errors make sure that the angle unit is THE ONE
required by your problem. To verify or to change the angle unit press
[SIFT][MODE] and select [3: Deg] for degrees, [4:Rad] for radians, or
[5:Grad] for grads.

**Convert from rectangular to polar **

[SHIFT][+] (Pol) . Screen displays**Pol(**

You enter the X-coordinate, and the Y coordinate separated by a comma, then you close the parenthesis and press [=].

Exemple: Polar coordinate of the point (1,1)

Pol( 1, 1) gives

r=1.414213562 (square root of 2)

θ=45

Here is how you enter it

Press [SHIFT][MODE][2:LineIO]

[SHIFT][POL] 1 [SHIF] [,] 1 [)] [=]

The screen displays

**Pol(1,1)**

**r= 1.414213562**

θ= 45

**Convert from polar to rectangular coordinates**

Rec ( radius, angle) =

Exemple: Recatngular coordinates of (r=3, θ=60°)

**[SHIFT][Rec] 3 [SHIFT][,] 60 [ ) ] [=] **

The screen displays

**Rec(3,60)**

X= 1.5

Y= 2.598076211

[SHIFT][+] (Pol) . Screen displays

You enter the X-coordinate, and the Y coordinate separated by a comma, then you close the parenthesis and press [=].

Exemple: Polar coordinate of the point (1,1)

Pol( 1, 1) gives

r=1.414213562 (square root of 2)

θ=45

Here is how you enter it

Press [SHIFT][MODE][2:LineIO]

[SHIFT][POL] 1 [SHIF] [,] 1 [)] [=]

The screen displays

θ= 45

Rec ( radius, angle) =

Exemple: Recatngular coordinates of (r=3, θ=60°)

The screen displays

X= 1.5

Y= 2.598076211

Jan 19, 2010 | Casio FX-115ES Scientific Calculator

Hello,

To avoid errors make sure that the angle unit is THE ONE required by your problem. To verify or to change the angle unit press [SIFT][MODE] and select [3: Deg] for degrees, [4:Rad] for radians, or [5:Grad] for grads.

**Convert from rectangular to polar **

[SHIFT][+] (Pol) . Screen displays**Pol(**

You enter the X-coordinate, and the Y coordinate separated by a comma, then you close the parenthesis and press [=].

Exemple: Polar coordinate of the point (1,1)

Pol( 1, 1) gives

r=1.414213562 (square root of 2)

θ=45

Here is how you enter it

Press [SHIFT][MODE][2:LineIO]

[SHIFT][POL] 1 [SHIF] [,] 1 [)] [=]

The screen displays

**Pol(1,1)**

**r= 1.414213562**

θ= 45

**Convert from polar to rectangular coordinates**

Rec ( radius, angle) =

Exemple: Recatngular coordinates of (r=3, θ=60°)

**[SHIFT][Rec] 3 [SHIFT][,] 60 [ ) ] [=] **

The screen displays

**Rec(3,60)**

X= 1.5

Y= 2.598076211

Hope it helps.

To avoid errors make sure that the angle unit is THE ONE required by your problem. To verify or to change the angle unit press [SIFT][MODE] and select [3: Deg] for degrees, [4:Rad] for radians, or [5:Grad] for grads.

[SHIFT][+] (Pol) . Screen displays

You enter the X-coordinate, and the Y coordinate separated by a comma, then you close the parenthesis and press [=].

Exemple: Polar coordinate of the point (1,1)

Pol( 1, 1) gives

r=1.414213562 (square root of 2)

θ=45

Here is how you enter it

Press [SHIFT][MODE][2:LineIO]

[SHIFT][POL] 1 [SHIF] [,] 1 [)] [=]

The screen displays

θ= 45

Rec ( radius, angle) =

Exemple: Recatngular coordinates of (r=3, θ=60°)

The screen displays

X= 1.5

Y= 2.598076211

Hope it helps.

Nov 14, 2009 | Casio FX-115ES Scientific Calculator

Hello,

It may be due to the angle unit used. You can have angles in degrees, in radians, and in grads. You should set the default angle unit to waht you problem calls for.

To set degree as default SHIFT MODE 3

To set radians as default SHIFT MODE 4

To set grads as default SHIFT MODE 5

The values of angles calculated by the inverse trigonometric functions are in the default unit that is set . This may be the source of the wrong answers that you get.

Hope it helps.

It may be due to the angle unit used. You can have angles in degrees, in radians, and in grads. You should set the default angle unit to waht you problem calls for.

To set degree as default SHIFT MODE 3

To set radians as default SHIFT MODE 4

To set grads as default SHIFT MODE 5

The values of angles calculated by the inverse trigonometric functions are in the default unit that is set . This may be the source of the wrong answers that you get.

Hope it helps.

Sep 16, 2009 | Casio FX-115ES Scientific Calculator

Hello,

It may be due to the angle unit used. You can have angles in degrees, in radians, and in grads. You should set the default angle unit to waht you problem calls for.

To set degree as default SHIFT MODE 3

To set radians as default SHIFT MODE 4

To set grads as default SHIFT MODE 5

The values of angles calculated by the inverse trigonometric functions are in the default unit that is set . This may be the source of the wrong answers that you get.

Hope it helps.

It may be due to the angle unit used. You can have angles in degrees, in radians, and in grads. You should set the default angle unit to waht you problem calls for.

To set degree as default SHIFT MODE 3

To set radians as default SHIFT MODE 4

To set grads as default SHIFT MODE 5

The values of angles calculated by the inverse trigonometric functions are in the default unit that is set . This may be the source of the wrong answers that you get.

Hope it helps.

Sep 16, 2009 | Casio FX-115ES Scientific Calculator

The instructions are below the screen. It says Mode arrow and a table of numbers.

If you want to set (use) degrees, you press the MODE key followed by the 4 key. On the top of the screen**deg** will be displayed.

If you want to set RAD or GRAD, similarily, you press MODE followed by 5, or MODE then 6.

However**if you want to convert a result displayed in a particular unit **into other angle units, you press SHIFT MODE then 4 or 5 or 6, whichever is the case for you.

Hope it helps.

If you want to set (use) degrees, you press the MODE key followed by the 4 key. On the top of the screen

If you want to set RAD or GRAD, similarily, you press MODE followed by 5, or MODE then 6.

However

Hope it helps.

Aug 12, 2009 | Casio FX-115ES Scientific Calculator

Under the screen you can see atable of values at the right of which is written MODE followed by a small arrow.

If you want to set the degree as angle unit, you press the MODE key followed by 4 (as seen in the table I was referring to).

Similarly, if you want to set RAD as the angle unit you press MODE then 5; and MODE then 6 for GRAD.

However if you just want to convert a number displayed on the screen in RADs or GRADs into DEGs , you press SHIFT then MODE then 4. your number should be converted from the unit it was expressed in into degrees.

Same thing if you want to convert into RADs: SHIFT then MODE then 5.

Hope it helps.

If you want to set the degree as angle unit, you press the MODE key followed by 4 (as seen in the table I was referring to).

Similarly, if you want to set RAD as the angle unit you press MODE then 5; and MODE then 6 for GRAD.

However if you just want to convert a number displayed on the screen in RADs or GRADs into DEGs , you press SHIFT then MODE then 4. your number should be converted from the unit it was expressed in into degrees.

Same thing if you want to convert into RADs: SHIFT then MODE then 5.

Hope it helps.

Aug 02, 2009 | Casio FX-115ES Scientific Calculator

Read the screen capture about the MODES of this calculators. DEG,RAD, and GRAD remind the user that the angle units in trigonometric function calculations and coordinate conversions are in degrees, radians or grads. They have nothing to do with the other calculations you are doing.

You can only remove DEG by changing the angle unit to RADians or GRADs. In so doing, the new unit indicator (RAD, GRAD) will be displayed instead. There is no point worrying about the angle unit indicator unless you are performing coordinate conversions or calculating trigonometric functions or the inverse trigonometric functions.

MODE 9 cancels the FIX display format: decimal are displayed with a fixed number of decimal places (set by the user). After this key sequence the decimal display format reverts to NORM(al).

You can only remove DEG by changing the angle unit to RADians or GRADs. In so doing, the new unit indicator (RAD, GRAD) will be displayed instead. There is no point worrying about the angle unit indicator unless you are performing coordinate conversions or calculating trigonometric functions or the inverse trigonometric functions.

MODE 9 cancels the FIX display format: decimal are displayed with a fixed number of decimal places (set by the user). After this key sequence the decimal display format reverts to NORM(al).

Dec 03, 2008 | Casio FX-260 Calculator

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