# More Math

Adds math nodes for numbers and types which do not need it. I got inspired by was_extras node.

#WARNING This node is not compatible to ComfyUI-Impact-Pack which forces older antlr version.

## Quickstart

1. Install [ComfyUI](https://docs.comfy.org/get_started).
1. Clone this repository into `ComfyUI/custom_nodes`.
1. Restart ComfyUI.

You can also get the node from comfy manager under the name of More math.

# Features

- expression parsing with support for functions and variables:
  - functions:
    - run expressions on both components of CONDITIONING (not that I know what they do), LATENT, IMAGE, NOISE and FLOAT
    - math operators (binary and unary +,- and ^,*,/,%)
    - boolean operators (false = 0.0; true = 1.0) (<,<=,>,>=,==,!=)
    - sin, cos, tan
    - asin, acos, atan (can produce NaN outside range -1...1)
    - atan2 (x,y)
    - sinh, cosh, tanh 
    - asinh, acosh, atanh (can produce NaN outside range -1...1)
    - abs, sqrt (produces NaN on negative numbers), ln (log with base e), log (base 10), exp, pow
    - smin, tmin, smax, tmax, tnorm, snorm (norm and t prefixed are not applicable on float math node)
      - s prefixed return one number
      - t prefixed work element-wise
    - floor, ceil, round, gamma, clamp, sigm (sigmoid)
    - angle (audio node)
  - variables
    - a, b, c, d : inputs of type based on node
    - w, x, y, z : each node allows use of 4 additional floats
    - W : Width of tensor - does not work on FLOAT and CONDITIONING
    - H : Height of tensor - does not work on FLOAT and CONDITIONING
    - C : Channel of tensor - used as color chanel in IMAGE or as information channel in others. does not work on FLOAT and CONDITIONING
    - B : Batch - does not work on FLOAT and CONDITIONING
    - X : X position in tensor - does not work on FLOAT and CONDITIONING
    - Y : Y position in tensor - does not work on FLOAT and CONDITIONING
    - I : Tensor used to initalise sampler before noise injection - usually zeroed out and generated by Empty Latent Image node - Exclusive for NOISE
  - use constant e and pi