Question about Casio FX-115ES Scientific Calculator

Hello,

To convert an angle from degrees (decimal degrees) to the sexagesimal notation (deg, min, seconds) use the key [DMS] the one between [(-) and [hyp].

Everytime you press the key, the displayed result is cast in the other form

EX; 12.58 [DMS] gives 12 deg 34 min 48 sec.

Suggestion: If you are doing many calculations with the sexagesimal format, use the decimal degree format, and only when you find the final result do you convert it to DMS.

Hope it helps.

Posted on Sep 30, 2009

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Posted on Jan 02, 2017

On any calculator, let's convert degrees-minutes-second to degrees and then we will do the reverse.

Let's start with the number of seconds in a minute - 60, so we must take the seconds and divide by 60 to get the number of minutes. Next, add the number of minutes. The number of minutes in a degree is 60, so we take this total and divide by 60. Now we add the number of degrees to get out final answer.

Example: 35 degrees 50 minutes 32 seconds

(32/60 + 50)/60 + 35 = 35.842222 degrees

Just out of interest, let's start with 35.842222 degrees and convert it to degrees-minutes-seconds. We know it is 35 degrees, the whole number. Now we have to determine the minutes and seconds. Start by subtracting 35 to get the decimal 0.842222. Now multiply by 60 to get the number of minutes. I get 50.5332. Subtract 50 from this and multiply again by 60. I get 31.9992, which rounds to 32 seconds.

Good luck.

Paul

Let's start with the number of seconds in a minute - 60, so we must take the seconds and divide by 60 to get the number of minutes. Next, add the number of minutes. The number of minutes in a degree is 60, so we take this total and divide by 60. Now we add the number of degrees to get out final answer.

Example: 35 degrees 50 minutes 32 seconds

(32/60 + 50)/60 + 35 = 35.842222 degrees

Just out of interest, let's start with 35.842222 degrees and convert it to degrees-minutes-seconds. We know it is 35 degrees, the whole number. Now we have to determine the minutes and seconds. Start by subtracting 35 to get the decimal 0.842222. Now multiply by 60 to get the number of minutes. I get 50.5332. Subtract 50 from this and multiply again by 60. I get 31.9992, which rounds to 32 seconds.

Good luck.

Paul

Jul 06, 2015 | Texas Instruments TI-36 X Solar Calculator

There are 60 seconds in a minute, and 60 minutes in a degree. So, 1 second is 1/3600 of a degree. So as an example, 9 seconds is equal to 0.0025 deg.

Sep 28, 2014 | Topcon Survey Equipment Dt-30 Digital...

Convert each one to decimal degrees with the ->H function, add them together, then convert back to degrees-minutes-seconds with the ->H.MS function.

Jun 06, 2014 | HP 15C Scientific Calculator

Enter the degrees, a decimal point, then two digits for the minutes followed by two digits for the seconds (then followed by any fractional seconds). You can then convert to decimal degrees with the HMS-> function.

For example, to enter 1 degree 36 minutes 24 seconds, press 1 . 3 6 2 4 ALPHA ALPHA "H" "M" "S" right-shift "0" ENTER

For example, to enter 1 degree 36 minutes 24 seconds, press 1 . 3 6 2 4 ALPHA ALPHA "H" "M" "S" right-shift "0" ENTER

Jun 30, 2013 | HP 50g Graphic Calculator

Press the MATH key to bring up the Math menu. Select "Real" and then "HMS->". This function takes an angle in DDD.MMSS format and converts to decimal degrees. The "->HMS" function goes the other way.

Mar 14, 2011 | HP 40g Calculator

Cristina,

You might be referring to something else, so let me try to knock out two birds with one stone.

The arcsine function is the inverse sine function. It will take a ratio input and produce a degree/radian output. It isn't exactly transforming anything into degrees. Instead, it is telling you the corresponding angle that goes with the ratio of opposite over hypotenuse (your input).

With that said, I am going to try to answer your question with two possible solutions.

1. To find the arcsine of a value/input (between -1 and 1) you simply have to press {[2ND]} {[SIN]} {["NUMBER"]}. For example, if I wanted the arcsine of one-half I would press {[2ND]} {[SIN]} {[.]} {[5]} {[=]}. The computer would display 30 (degrees) because the sine of thirty degrees is one-half, therefore the arcsine of one-half is 30 degrees. Inverse functions in math are often written with a faux-exponent of negative one. Inverse sine (ie arcsine) should be written in blue above the sine button on your calculator.

2. To convert a compass reading into a concrete degree measure you will NOT use arcsine. Instead, you can use the Degree-Minute-Second key which is on the TI-30X. The degree portion is naturally symbolized by the superscript o; the minute is symbolized by the single apostrophe mark, the second symbol is the quotation mark. So, to convert a compass reading of 10 degrees-30 minutes - 30 seconds you would type {[10]} {[o ' "]} {[=]} {[30]} {[o ' "]} {[ -> ]} {[=]} {[30]} {[o ' "]} {[->]} {[->]} {[=]} {[=]}. The calculator should display 10.50833333, which represents the hardcore angle measure that corresponds with 10-degrees-30minutes-30seconds. Also, it should be known that this is a much better thing to do by hand because it will deeply ingrain the basic mathematics going on. Even though we're talking about degree measures, the minutes & seconds are still at a 60 unit benchmark: meaning that there are 60 minutes in a degree and 60 seconds in a minute. Therefore, 30 minutes & 30 seconds is 30.5 seconds, which is 50.83333 percent of 1 degree. Thus, 10.5083333 degreeees. Also, you can think of it as 3600 seconds in a degree, therefore you had 1830 seconds which equated to 50.83333% of 1 degree. Thus, 10.50833333 degrees total.

Alright...I hope that helps you with either question you might have been referring to. Also, I hope you enjoyed the minor math lesson involved here. Maybe you already knew it. If that was the case then I am sorry. Either way, I own a TI-30XB Solar (among many other TI Calculators) and I highly doubt that the buttons on my calculator are starkly different from yours.

If you have more calculator or even math questions just post them on here and I'll hack away.

Arrivederci.

The Math Cheetah

www.THEMATHCHEETAH.com

You might be referring to something else, so let me try to knock out two birds with one stone.

The arcsine function is the inverse sine function. It will take a ratio input and produce a degree/radian output. It isn't exactly transforming anything into degrees. Instead, it is telling you the corresponding angle that goes with the ratio of opposite over hypotenuse (your input).

With that said, I am going to try to answer your question with two possible solutions.

1. To find the arcsine of a value/input (between -1 and 1) you simply have to press {[2ND]} {[SIN]} {["NUMBER"]}. For example, if I wanted the arcsine of one-half I would press {[2ND]} {[SIN]} {[.]} {[5]} {[=]}. The computer would display 30 (degrees) because the sine of thirty degrees is one-half, therefore the arcsine of one-half is 30 degrees. Inverse functions in math are often written with a faux-exponent of negative one. Inverse sine (ie arcsine) should be written in blue above the sine button on your calculator.

2. To convert a compass reading into a concrete degree measure you will NOT use arcsine. Instead, you can use the Degree-Minute-Second key which is on the TI-30X. The degree portion is naturally symbolized by the superscript o; the minute is symbolized by the single apostrophe mark, the second symbol is the quotation mark. So, to convert a compass reading of 10 degrees-30 minutes - 30 seconds you would type {[10]} {[o ' "]} {[=]} {[30]} {[o ' "]} {[ -> ]} {[=]} {[30]} {[o ' "]} {[->]} {[->]} {[=]} {[=]}. The calculator should display 10.50833333, which represents the hardcore angle measure that corresponds with 10-degrees-30minutes-30seconds. Also, it should be known that this is a much better thing to do by hand because it will deeply ingrain the basic mathematics going on. Even though we're talking about degree measures, the minutes & seconds are still at a 60 unit benchmark: meaning that there are 60 minutes in a degree and 60 seconds in a minute. Therefore, 30 minutes & 30 seconds is 30.5 seconds, which is 50.83333 percent of 1 degree. Thus, 10.5083333 degreeees. Also, you can think of it as 3600 seconds in a degree, therefore you had 1830 seconds which equated to 50.83333% of 1 degree. Thus, 10.50833333 degrees total.

Alright...I hope that helps you with either question you might have been referring to. Also, I hope you enjoyed the minor math lesson involved here. Maybe you already knew it. If that was the case then I am sorry. Either way, I own a TI-30XB Solar (among many other TI Calculators) and I highly doubt that the buttons on my calculator are starkly different from yours.

If you have more calculator or even math questions just post them on here and I'll hack away.

Arrivederci.

The Math Cheetah

www.THEMATHCHEETAH.com

Feb 27, 2011 | Texas Instruments TI-30XA Calculator

The DMS symbols are available under the ANGLE menu

Press [2nd][APPS] (ANGLE)

Under that menu you find the degree and minute symbol. To enter the seconds unit you use the key sequence [ALPHA][+] (")

To enter 1deg 15 minutes and 37 seconds

1 [2nd][APPS] [1:deg] 15[2nd][Apps][2:'] 37 [ALPHA] [+]

To enter a number in decimal degrees (eg 15.37)

Press [2nd][APPS] (ANGLE)

Under that menu you find the degree and minute symbol. To enter the seconds unit you use the key sequence [ALPHA][+] (")

To enter 1deg 15 minutes and 37 seconds

1 [2nd][APPS] [1:deg] 15[2nd][Apps][2:'] 37 [ALPHA] [+]

To enter a number in decimal degrees (eg 15.37)

- If angle unit is the degree just enter 15.37
- If angle unit is the radian , you must specify the angle unit as degrees: To enter 15.37 degrees you type 15.37 [2nd][Apps][1: degree] [ENTER].

Feb 08, 2010 | Texas Instruments TI-84 Plus Calculator

Hello,

Look at the column of keys under the ALPHA key. You have the integral, the square root, and then the key that has a degree sign, an apostrophe and a double closing quotation mark. That is the one you use to enter the angle in sexagesimal notation. To simplify my task I will symbolize the key with [DMS], degree, minute , second.

To calculate cos (32° 45')

you press

[COS] 32[DMS]45 [DMS] ) and press [=] The result si 0.841039013

Hope it helps.

Look at the column of keys under the ALPHA key. You have the integral, the square root, and then the key that has a degree sign, an apostrophe and a double closing quotation mark. That is the one you use to enter the angle in sexagesimal notation. To simplify my task I will symbolize the key with [DMS], degree, minute , second.

To calculate cos (32° 45')

you press

[COS] 32[DMS]45 [DMS] ) and press [=] The result si 0.841039013

Hope it helps.

Nov 08, 2009 | Casio FX-115ES Scientific Calculator

if you mean degrees like the degree/minute/second thing:
lets say you have 24.12
there is a button that has a dot, and 3 commas (it's located next to the negative button) that will convert that number to degrees. input your decimal, press the equal sign, and then press that degree button and it will convert 24.12 to degrees, minutes, and seconds. the solution is 24 degrees, 7 minutes, and 12 seconds.

Jan 11, 2009 | Casio FX-115ES Scientific Calculator

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.

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.

Oct 21, 2007 | HP 33s Calculator

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