Question about Texas Instruments TI-83 Plus Calculator

Whenever i press sin, cos, or tan, put in a number, and press enter, a wrong answer always comes up. when i do it another calculator, the correct answer comes up. how can i fix this problem? i know there is a way to do this.

Re: need help withe the sin, cos, tan problem with ti -...

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

Posted on Nov 09, 2007

Re: need help withe the sin, cos, tan problem with ti - 83 plus - Texas Instruments TI-83 Plus Calculator Calculators

Just change the mode... from "rad" to "deg"

Posted on Mar 17, 2007

Re: need help withe the sin, cos, tan problem with ti -...

To extract an angular degree from a sin, cos, or tan (reciprocal), use [2nd][TAN], [SIN], or [COS]. For example ... To get the angular degree for tan .5760, cycle [DRG] to set the entry mode to "DEG", then enter [.5760][2nd][TAN]. This calls the yellow function above the [TAN] key, TAN^-1^ and returns the decimal result 29.94. To change the display mode to show degrees, minutes, and seconds (DMS) with [2nd][=]. To change the display back to decimal use [2nd][+]. Note that to use degrees in calculations they must be in decimal mode. To convert the result between deg, rad, or grad, cycle [2nd][DRG].

Posted on Oct 08, 2007

Re: need help withe the sin, cos, tan problem with ti -...

Umm, isnt that where you press MODE and change it from radian to degrees?

Posted on Apr 27, 2009

Re: need help withe the sin, cos, tan problem with ti -...

For the TI-30Xa ... set entery mode to "deg" with [DRG], then input number and press [SIN], [COS], OR [TAN]. Most functions on that model require the pattern number, function. Here's a link to the TI-30Xa user manual in PDF format ... http://www.usm.maine.edu/math/120D/TI30xa.pdf

Posted on Oct 08, 2007

Re: need help withe the sin, cos, tan problem with ti -...

I'm not too sure what the actual problem is.

If the problem has nothing to deal with your mode not being in deg then I think it might be your input method.

Maybe you can provide an example?

Such as... sin 90.

So what you said is, you enter...

1)sin

2)number (in this case 90)

3)enter [=]

This will appear to be 90 on your F-502, which is obviously incorrect. For some strange reason, it operates different and you have to enter it in the different order.

Instead, try this:

1)number (in this case 90)

2)sin

This should give you an answer, without having to press enter [=], of 1, which is in fact correct.

Posted on Nov 09, 2007

Re: need help withe the sin, cos, tan problem with ti -...

On your calculator, check to make sure it is on degrees instead of radian. maybe that's why. hope i helped.

Posted on May 14, 2009

Re: need help withe the sin, cos, tan problem with ti -...

CHECK YOUR MODE TO MAKE SURE YOU ARE IN DEGREES OR IN RADIANS

Posted on Nov 30, 2010

Re: need help withe the sin, cos, tan problem with ti -...

To solve this problem locate the mode button on your TI83 calculator , press this and come down to where you see radian. once here use the right arrow to move to degree then press enter and clear.

kendrick!!!

Posted on Sep 21, 2009

Re: need help withe the sin, cos, tan problem with ti -...

Whats the diff between radians and degrees, like will it effect regular calculations?

Posted on May 08, 2008

Re: need help withe the sin, cos, tan problem with ti -...

Some keys not working

Posted on Jan 22, 2008

Re: need help withe the sin, cos, tan problem with ti -...

Posted on Jan 03, 2008

Re: need help withe the sin, cos, tan problem with ti -...

Make sure it's in the right mode, i.e. radians, degress. check it under set up

Posted on May 21, 2007

Re: need help withe the sin, cos, tan problem with ti -...

Make sure your Ti-30xs is in deg. mode you can check this by looking at the top left of your screen it will show you what mode it is in. if it is in deg. mode sorry idk...

Posted on Feb 09, 2009

Re: need help withe the sin, cos, tan problem with ti -...

Input the number first.

Press the trig function next.

That's it.

For example:

Press '3' and '0'.

Press 'SIN'

The display shows the answer: 0.500

Posted on Oct 31, 2007

Re: need help withe the sin, cos, tan problem with ti -...

From the description it's not a mode problem, it's a PBCAK - Problem Between Chair and Keyboard. This is a Reverse Polish Notation calculator. The correct way to get the sin of something is NOT "press sin, cos, or tan, put in a number, and press enter" it is "put in number and press sin, cos, or tan". Data first, then function. If you need to input more than one datum, use the ENTER key: "2 ENTER 2 +"

Posted on Nov 09, 2007

SOURCE: Tan Cos and Sin errors

go to:

mode

select DEGREE rather than RADIAN three lines down.

Posted on Jan 21, 2009

SOURCE: cannot calclate sin cos tan with texas inst ti-83 plus

To put it in Scientific mode, press MODE then use your right arrow to move your cursor one spot to SCI. Press ENTER then press CLEAR.

Posted on Jun 16, 2009

SOURCE: whenever i put in sin or cos or tan on my

Most likely you do have the calculator in radians (or if you are working in radians, you have it in degrees). Press the mode button, move cruser down to "radians degrees" highlight degrees. and press "2nd quit". things sould be better!

Posted on Jun 03, 2010

Make sure you have the proper angle mode set. Press MODE and check the third line.

Feb 03, 2014 | Texas Instruments TI-83 Plus Calculator

First, make sure you have the appropriate angular mode set. To change the angular mode, press MODE, use the arrow keys to highlight either "RADIAN" or "DEGREE" on the third line, press ENTER, then press 2ND [QUIT].

Press the appropriate sin, cos, or tan key (two rows above the 7, 8, and 9 keys), enter the angle, close the parenthesis, and press ENTER. For example, to calculate the sin of 2.1, press

SIN 2 . 1 ) ENTER

Press the appropriate sin, cos, or tan key (two rows above the 7, 8, and 9 keys), enter the angle, close the parenthesis, and press ENTER. For example, to calculate the sin of 2.1, press

SIN 2 . 1 ) ENTER

Jun 07, 2011 | Texas Instruments TI-83 Plus Calculator

Once you reset your calculator, everything should be fine. Sometimes your calculator's memory stores your cos, tan, and sin and messes up your calucations.T
o reset your calculator:

- Press 2nd then MEM (which is above the + key)
- Press 7 to reset
- Press 2 for default
- Press 2 again to reset defaults
- Press enter
- Done.

Mar 06, 2011 | Texas Instruments TI-83 Plus Calculator

Press "Mode"
Check to see if you are in radian mode or degree mode (one of the top categories)

If you are entering your numbers from sin, cos, and tan as degrees and you are in radians, your answers will be off. Same goes for if you are inputting radians while in degree mode. Hope this helps

If you are entering your numbers from sin, cos, and tan as degrees and you are in radians, your answers will be off. Same goes for if you are inputting radians while in degree mode. Hope this helps

Dec 26, 2010 | Texas Instruments TI-83 Plus Calculator

There are no keys for cosecant, secant, and cotangent. You can calculate those ratios as

csc(x) = 1/sin(x)

sec(x) = 1/cos(x)

cot(x) = 1/tan(x)

Simply calculate the trig ratio on the right and then take its reciprocal.

csc(x) = 1/sin(x)

sec(x) = 1/cos(x)

cot(x) = 1/tan(x)

Simply calculate the trig ratio on the right and then take its reciprocal.

Dec 14, 2010 | Texas Instruments TI-83 Plus Calculator

Most likely you do have the calculator in radians (or if you are working in radians, you have it in degrees). Press the mode button, move cruser down to "radians degrees" highlight degrees. and press "2nd quit". things sould be better!

Jun 03, 2010 | Texas Instruments TI-83 Plus 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

Your calculator is set in radians. Press mode key. Arrow down to 3rd line. Highlight degree and press enter. Your calculator is now in degrees, not radians. To get out of the mode screen and back to home screen, press 2nd and then mode.

Aug 05, 2009 | Texas Instruments TI-84 Plus Calculator

To put it in Scientific mode, press MODE then use your right arrow to move your cursor one spot to SCI. Press ENTER then press CLEAR.

May 31, 2009 | Texas Instruments TI-83 Plus Calculator

go to:

mode

select DEGREE rather than RADIAN three lines down.

mode

select DEGREE rather than RADIAN three lines down.

Aug 20, 2008 | Texas Instruments TI-84 Plus Silver...

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