Cosine Function

Cosine function is one of the commonly used trigonometric functions in quantitative trading, used to calculate the cosine value of an angle.

Calculation Principle

Cosine function is calculated using the following formula:

y = cos(x)

Where:

• x: Input angle (in radians)
• y: Cosine value (range: -1 to 1)

Parameter Description

• Input Parameters: One K-line data series
• Output: Cosine value series

Usage Recommendations

1. Pay attention to input value range
2. Consider angle unit (radians)
3. Pay attention to numerical precision
4. Consider periodic characteristics
5. Pay attention to result interpretation

Notes

• Ensure data quality
• Pay attention to data preprocessing
• Consider the impact of extreme values
• Pay attention to numerical range
• Consider periodicity
• Pay attention to result stability
• Consider computational efficiency
• Pay attention to practical application scenarios