# Numerics

Basic mathematical transforms and utility functions for time series.

| Indicator | Full Name | Description |
| :--- | :--- | :--- |
| ACCEL | Momentum change; 2nd derivative | |
| ATAN2 | Two-Argument Arctangent | |
| CHANGE | Percentage Change | |
| EXP | Exponential Transformation | |
| HIGHEST | Highest value | |
| HL2 | (High + Low) / 2 | |
| HLC3 | (High + Low + Close) / 3 | |
| HLCC4 | (High + Low + Close + Close) / 4 | |
| JOLT | Rate of acceleration; 3rd derivative | |
| LINEAR | Linear Transformation | |
| LOG | Logarithmic Transformation | |
| LOWEST | Lowest value | |
| MIDPOINT | (Highest + Lowest) / 2 | |
| NORMALIZE | Min-Max Scaling (Normalization) | |
| OC2 | (Open + Close) / 2 | |
| OHL3 | (Open + High + Low) / 3 | |
| OHLC4 | (Open + High + Low + Close) / 4 | |
| RELU | Rectified Linear Unit | |
| SIGMOID | Logistic Function | |
| SLOPE | Rate of change; 1st derivative | |
| SQRT | Square Root Transformation | |
| STANDARDIZE | Standardization (Z-score) | |
| TANH | Hyperbolic Tangent | |