Syntax

talib.COS

Calculates the cosine of each element (Vector Trigonometric Cos).


    
    
    
talib.COS(inReal)

Examples

Compute the cosine of a few numbers.

javascript
python


    javascript
    
    
function main() {
    var data = [-3.14, 0, 3.14]
    var ret = talib.COS(data)
    // Output: about [-1, 1, -1]
    Log(ret)
}


    python
    
    
import talib
import numpy as np
def main():
    data = [-3.14, 0, 3.14]
    ret = talib.COS(np.array(data))
    # Output: about [-1, 1, -1]
    Log(ret)

Returns

Type	Description
numeric array	Results, the same length as the input.

Arguments

Name	Type	Required	Description
inReal	`Record` array / numeric array	Yes	K-line array (close prices are used) or numeric array; in Python, pass a numeric array such as `records.Close`.