Difference between revisions of "Manuals/calci/ACOS"
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==Description== | ==Description== | ||
Consider '''x = 0.8''' then '''=ACOS(0.8)''' gives '''0.64350110879''' <br/> | Consider '''x = 0.8''' then '''=ACOS(0.8)''' gives '''0.64350110879''' <br/> | ||
| − | *This function is the inverse function of COS in | + | *This function is the inverse function of COS in trigonometry. |
*Also it is called as Cyclometric function. | *Also it is called as Cyclometric function. | ||
| − | *ACOS is described as arcCOS and denoted by <math>cos^-1(x)</math>. | + | *ACOS is described as arcCOS and denoted by <math>cos^{-1}(x)</math>. |
*In ACOS(x), x value should be with in -1 & 1. | *In ACOS(x), x value should be with in -1 & 1. | ||
*To find the angle in degrees, multiply the result angle with 180/PI(). | *To find the angle in degrees, multiply the result angle with 180/PI(). | ||
| Line 48: | Line 48: | ||
*[http://en.wikipedia.org/wiki/Trigonometric_functions List of Trigonometric Functions] | *[http://en.wikipedia.org/wiki/Trigonometric_functions List of Trigonometric Functions] | ||
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Revision as of 01:05, 6 November 2013
ACOS(x)
- Where x is the number and it is varying from -1 to 1.
- The value of ACOS(x) is in radians.
- Calci returns the arcCOS (inverse Cos) of a number. Output is the angle in radians.
- The number can be a single value or any number of values.
For example, ACOS(0.5,(-0.2),1) gives the arcCOS or inverseCOS values for each element.
Description
Consider x = 0.8 then =ACOS(0.8) gives 0.64350110879
- This function is the inverse function of COS in trigonometry.
- Also it is called as Cyclometric function.
- ACOS is described as arcCOS and denoted by .
- In ACOS(x), x value should be with in -1 & 1.
- To find the angle in degrees, multiply the result angle with 180/PI().
- DEGREES function can also be used.
.For example ACOS(0.5)*180/PI() or DEGREES(ACOS(0.5)) gives 60
Examples
ACOS(x)
- x is the COS of the angle
| ACOS(x) | Angle(radians) |
| ACOS(0) | 1.57079632 |
| ACOS(1) | 0 |