Question about Texas Instruments TI 30XIIS Scientific Calculator
Posted by Anonymous on
The arccosine function works for numbers between -1 and +1. 10000/50 is far outside of this domain.
Posted on Apr 16, 2014
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Posted on Jan 02, 2017
You need to be in the degree mode. To do this push the mode button on the calculator (mine is located near the directional keys). Go down three rows to where it displays RAD DEG. Move your cursor (which is blinking) to DEG and press enter. This will highlight the DEG mode press your 2nd then CLEAR button to Quit back to the main screen.
Posted on Nov 29, 2007
SOURCE: my ti30x will not do cos-1
The cosine function takes its value on the whole real line, the angle domain spans ]-infinity, + infinity[. The range of the function is however limited to the [-1, +1] interval.
Thus if you want to calculate the arc (angle) from the value of the cosine, the cosine must be in the interval [-1, +1]. Any value outside this domain will give you a domain error.
Check that the values you feed to the arc cosine function are in the interval [-1,+1].
If the angle unit is the degree the value returned bay [cos^-1] is in degrees, and if the angle unit is the radian, the value returned is in radians
Posted on Mar 04, 2010
SOURCE: whenever i type in 2nd
The key sequence [2nd] [Cos] calls the function arcosine or cos^-1. However that function takes its values in the range of the cosine function which is the interval [-1,1].
As you can see, your value of 1301.16 is clearly outside the interval [-1,1].
Posted on Dec 15, 2010
SOURCE: I'm trying to do inverse
The inverse sine and cosine equations mean "angle who's sine/cosine is:" The bounds of the arguments for these functions must be between 1 and -1, the maximum and minimum values of the sine and cosine functions, because no angle can have a sine or cosine that is greater than 1 or smaller than -1. Also it should be noted that the inverse sine/cosine function is not the same as 1/sine or 1/cosine, although the symbol makes it look like that.
Posted on Mar 08, 2011
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