Difference between revisions of "Manuals/calci/ACOS"
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==Description== | ==Description== | ||
− | Consider ''' | + | Consider '''x = -0.8''' then '''=ACOS(0.8)''' gives '''0.64350110879''' <br/> |
− | *This function is the inverse function of | + | *This function is the inverse function of COS in trignometry. |
− | *Also it is called as | + | *Also it is called as Cyclometric function. |
− | *ACOS is described as arcCOS and denoted by <math>cos^-1</math> | + | *ACOS is described as arcCOS and denoted by <math>cos^-1(n)</math>. |
− | + | *In ACOS(x),x value should be with in -1 & 1. | |
− | + | *Here x is in radians. To convert a degree value to radian, multiply 'x' with PI()/180 or use the radians function RADIANS(x) | |
{| class="wikitable" | {| class="wikitable" |
Revision as of 05:08, 4 November 2013
ACOS(n)
- Where n is the COS of the angle and is from -1 to 1.
- by default the result obtained will be in radians
- Calci returns the arcCOS (inverse Cos) of a number. Output is the angle in radians.
- To convert arcCOS to the degrees, multiply it by 180/PI.
- The number can be a single value or any number of values.
For example, ASIN(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 trignometry.
- 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.
- Here x is in radians. To convert a degree value to radian, multiply 'x' with PI()/180 or use the radians function RADIANS(x)
Number | ACOS |
---|---|
0.8 | 0.64350110879 |
-0.22 | 1.792610797291 |
0.2 | 1.567305661202 |
Examples
ACOS(x)
- x is the angle in radians.
TAN(Radian) | Value |
ACOS(0) | 1.5707963267948966 |
ACOS(1) | 0 |