zerocrossings
The number of sign reversals in a vector.
Syntax
zerocrossings(dep_vec)
Argument
- dep_vec
 - The vector used to calculate the number of axis crossings.
 
Example
| Templex Expression | Results | 
|---|---|
{zerocrossings({0,2,-1,2,-1,-1})} | 
                                3 | 
                            
A plot of this example is shown below:

Figure 1.
Each of the markers indicates where the plot has crossed the axis (zero-line).
Comments
The first point of a curve is not considered as a sign reversal if it lies on the axis. The same is true of the endpoint of a curve.