Manuals/calci/DCOS
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DCOS(x)
- where x is the angle in Radians
- by default Calci use Radian as angle
COS can be used if the angle is in Radians.
Description
- This function is used to obtain the COS value of 'x' in Degrees.
- It is the reciprocal of SEC function i.e,COS(x) = 1 / SEC(x).
- In a right angled triangle COS(x) = Adjacent side / Hypotenuse.
- To obtain the value in Radians multiply with PI()/180 or use COS function COS(X)
- DSEC returns NaN if 'x' is not real
The angle can be a single value or any complex array of values.
The following example shows how DSEC is applied to an array of numbers containing numbers 1..10.
- Type =1..10@DCOS in Calci
- Type =1..10@DCOS or 1..10@DCOS in ZOS
| Number | DCOS |
|---|---|
| 1 | 0.999847695 |
| 2 | 0.999390827 |
| 3 | 0.998629535 |
| 4 | 0.99756405 |
| 5 | 0.996194698 |
| 6 | 0.994521895 |
| 7 | 0.992546152 |
| 8 | 0.990268069 |
| 9 | 0.987688341 |
| 10 | 0.984807753 |
Examples
DCOS(x)
- x is the angle in radians.
- COS(-X)=COS(X)
- Result shows DCOS(abc)= NAN
| DCOS(Radian) | Value |
| DSEC(0) | 1 |
| DCOS(1) | 0.999847695 |
| DCOS(90) | 0 |