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How do you enter an angle in degrees, minutes and seconds on the HP 33s ?

I am trying to find the value of tan(32 degrees 20 minutes 10 seconds) on the HP 33s. I am using the ALG mode and I am in deg.
Any help is appreciated.

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Re: How do you enter an angle in degrees, minutes and...

Enter than angle as 32.2010 then press left-shift [->HR] to convert to decimal degrees.

The ->HR function (and the companion ->H.MS are for working in hours-minutes-seconds, but they work just as well for degrees-minutes-seconds.

Posted on Nov 04, 2010

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Sin 43 degrees 30'

Press SIN 4 3 2ND [ANGLE] 1 3 0 2ND [ANGLE] 2 ENTER

2ND [ANGLE] 1 gives you the degrees symbol, 2ND [ANGLE] 2 gives you the minutes symbol. If you need seconds, use ALPHA ["] (on the + key).

Note that this usually won't give you an EXACT value, but only a ten-digit approximation.

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How do i change the setting to degree?

Press [2nd][MODE] to enter the default setup screen. On the third line Radian, Degree, highlight degree and press ENTER. From then on, angle values will be interpreted as degree values.

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I am trying to locate the minute key on my casio fx-9750GII. I can find the degree and second key but not the minute key.

In Run(/Mat) press the OPTN key. Then press F6 to find other options.
Press F5:ANGL Here is what you see.

To enter an angle in decimal degrees, type in a decimal value then
press the F1:key to insert the degree symbol.
To enter an angle value in DMS, press the F4 key after each part.
See the next screen capture.


The menu option key above the F5 key, converts from DMS to DD

Sep 08, 2011 | Casio FX-9750GPlus Calculator

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How do you compute this using scientific calculator log tan 36 degrees 20 minutes?

You may want to insist on using the DMS (degree, minute, second) notation but since 20 minutes is 1/3 of a degree the value of the argument of the tangent function is just 36 and 1/3.
Make sure the angle unit is set to degree.
Set the calculator IO mode to MathIO: Press [SHIFT][MODE ][ : Degree]

Press the[ log] button: log(
Press the [ tan] function key tan (
You see on the screen log ( tan (
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Close the two parentheses ))
Press [EXE]
You should get -0.13344355615

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How do I find the tan of an angle and given the tan value, how do I find the angle

To find the tangent of an angle:

  1. input TAN (it's up one and left one from the division key)
  2. then the desired angle
  3. then a close parenthesis
  4. And then hit ENTER

To find the inverse tangent:

  1. Press 2nd
  2. Press TAN (TAN-1)
  3. Enter the desired tangent value
  4. close parenthesis
  5. hit enter

this will give you the angle that yields that tangent value.

You might have to switch your calculator from radian to degrees or from degrees to radians to get the expected result. To do that:

  1. Press MODE
  2. Scroll down to where it says ANGLE
  3. change it from either RAD or DEG

Good luck

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How can I find sin 45degrees 20 minutes using a fx-9750G PLUS calculator?

The problem is not finding the sine of the angle but expressing the angle in Degree Minutes Seconds instead of decimal degrees.
  1. In RUN screen press [SIN] function key
  2. Press [OPTN]
  3. Press [F6] to get to next page of menus.
  4. Press [F5:Angl]
  5. Enter 45 and press [F4: degree ' "]
  6. Enter 20 and press [F4: degree ' "]
  7. If you have seconds to enter, type in value and press [F4:degree ' "]
  8. Press [EXE] to get your result.

This procedure will give you the sine regardless of the angle unit the calculator is configured for.

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How to switch from the decimal degree to degrees, minutes, seconds

Keys 1. I displays the following menu that lets you change the angle mode setting to DEG, RAD, and GRD without affecting the value in the display. DEG Sets degree mode. RAD Sets radian mode. GRD Sets gradient mode. The default setting is DEG. 2. = displays a menu that lets you specify the unit of an angle. º Specifies degrees. å Specifies minutes. æ Specifies seconds. r Specifies radians. g Specifies gradients. DMS Lets you convert an angle from decimal degrees to DMS notation. Notes · The examples on the transparency masters assume all default settings. · Angles with a trig function ignore the angle mode setting and display results in the original unit. Otherwise, angles (without a trig function) are converted and displayed according to the angle mode setting. · You enter decimal-degree angles the same as you would any other number. · For decimal/DMS conversions, the calculator interprets all values as degrees, regardless of the angle-unit setting. · DMS angles are entered as º (degrees), ´ (minutes), and ´´ (seconds You watched 2 videos that were 2:05 (2 hours and 5 minutes) and 1:46 (1 hour and 46 minutes) in length. How long did you watch videos? = Press Display 2 = ¡ å æ r g & - DEG < 2¡ DEG 5 =" ¡ å æ r g & - DEG <T 1 = < 2¡ 5å + 1¡ DEG 46=" << 2¡ 5å + 1¡ 46å ' 3.85 DEG =! % ¾DMS ---- DEG << Ans ¾ DMS ' 3¡ 51å 0æ DEG Degrees, Minutes, and Seconds to Decimal © 1999 TEXAS INSTRUMENTS INCORPORATED TI-30X ùS: A Guide for Teachers 96 How much is 2/3 of an hour in hours, minutes, and seconds? = Press Display 2 N 3 2®3 DEG =! % ¾DMS ---- DEG << 2®3 ¾ DMS ' 0¡ 40å 0æ DEG

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TI-84 Incorrect sin/cos/tan values

What is so surprising? The sine and cosine functions have ranges that span the closed interval [-1,1]. As to the tangent function, its range is the the whole real line.

This being said, you should keep in mind that there are three angle units: the degree, the radian, and the grad.
When you want to calculate the sine, cosine, or tangent of a number, that number is not just a number. It is an angle, and as an angle it has a unit.

For this reason a calculator generally has two angle units defined (degree and radian), and possibly the grad. BEFORE calculating any trigonometric function you must ascertain that the angle is in the correct unit.

Clearly, in the problem you are trying to solve angle values are given in degrees, but your calculator is configured to interpret angles values in radians.

To set the default angle unit to degree press [MODE] , then press down arrow twice to reach the line (radian, degree). Highlight the word degree and press [ENTER] to set the default angle unit to degree.

Unfortunately the TI 8xPLUS family of calculators does not have a status bar on screen to remind you of the modes, and if you do not remember to check the current unit you get errors (at least unexpected results).

However, there is a way to avoid the errors and that is to enter the unit explicitly after the angle value. To do that you press [2nd][APPS] to open the (ANGLE) menu list. Try it.
  1. First item in list is the degree symbol, a raised 0
  2. 2nd is the minute, an apostrophe
  3. 3rd is radian, a raised r
By selecting the degree symbol and pressing [ENTER}, that symbol echoes on the screen just after the angle value. Closing the right parenthesis of the trigonometric function and pressing [ENTER] will give you the result in the correct unit of your choice. This can be done regardless of the default unit the calculator is configured for.

Jan 21, 2010 | Texas Instruments TI-84 Plus Silver...

1 Answer

How do I find degrees minutes and seconds on my ti 84 plus?

On this family of calculators, you do as follows
  1. Enter the first number (degrees), ex:15
  2. Press [2nd][APPS] (ANGLE) to access the Angle functions
  3. Select [1: degree symbol] [ENTER]
  4. Main screen shows 15 deg
  5. Enter the minutes, ex 25
  6. Press [2nd] [APPS](ANGLE) to access Angle functions
  7. Select [2:' apostrophe] [ENTER]
  8. Screen echoes 15 deg 25'
  9. Enter the seconds number, ex 32
  10. Press [ALPHA][+] (") to access the double quotation mark.
  11. Screen echoes 15 deg 25' 32"
  12. Press [ENTER]
  13. Calculator converts this in decimal degrees 15.42555556

To convert this back to DMS, press [ANGLE][|=>DMS][ENTER] and the calculator displays the original value 15 deg 25' 32"

Jan 11, 2010 | Texas Instruments TI-84 Plus Calculator

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Need to know how to obtain the cot,csc, and see in the degree mode and radian mode

There are no dedicated keys for these trigonometric functions, for the simple reason that they can be obtained from the tan, sin, and cos by a simple division.
cotangent (x) =1/tan(x) . Do not confuse with the arc tangent tan^(-1)
cosecant (x) = 1/sin(x) . Do not confuse with the arcsine sin^(-1)
secant(x) =1/cos(x) Do not confuse with the arccosine cos^(-10)

If you know how to use the tan, cos, and sin, with angle unit in degrees or radians, then there will not be any problem

If angle unit is degree, any number you give a trigonometric function is interpreted as degree. For instance if mode is in degree , and you calculate cos(PI) do not expect the value -1. You will have the value corresponding to the cosine of of 3.14159 degrees, namely 0.99849715

Now for you if you are interested.
If [MODE] is in degrees you can still enter angles in radians
You use the [2nd][ANGLE] [3: raised r] [ENTeR].
Here is a screen capture to show you more clearly.

The raised r is obtained by [2nd][ANGLE][3: raised r] [ENTER]

Hope it helps.

Oct 13, 2009 | Texas Instruments TI-83 Plus Calculator

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