Manuals/calci/ACOS
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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 = 90 then =ACOS(RADIANS(90)) gives 1
This function is the inverse function of cos in trignometry,and also it is called as cyclometric function.ACOS is described as arcCOS and denoted by cos-1 (x).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 |