Float Unary Operation JK🐉

CM_FloatUnaryOperation is the pack's one-float Swiss Army knife: an op dropdown with 32 operations on input a, returning a FLOAT. If you need a math function and this pack has it, it's probably here - trig, logs, rounding, even error functions.

What's in the menu

• Arithmetic: Neg, Inc (+1), Dec (−1), Abs, Sqr, Cube
• Roots & powers: Sqrt, Exp, Ln (natural log), Log10, Log2
• Trig: Sin, Cos, Tan, Asin, Acos, Atan
• Hyperbolic: Sinh, Cosh, Tanh, Asinh, Acosh, Atanh
• Rounding & truncation: Round, Floor, Ceil, Trunc
• Special: Erf, Erfc (error functions), Gamma (the gamma function), Radians, Degrees

The honest gotchas

This node is a thin wrapper over Python's math module, which means domain errors are real and they crash the queue rather than returning a graceful value:

• Sqrt of a negative raises. So do Ln/Log of zero or negatives.
• Asin/Acos only accept inputs in [−1, 1] - feed it 2 and it throws.
• Acosh needs a ≥ 1, Atanh needs −1 < a < 1. Tan of a multiple of π/2 explodes toward huge values, which then poison anything downstream.
• Gamma of a non-positive integer raises too.

So: if the value feeding this node comes from anything that can go out of range (a sampler output, a schedule, a slider), clamp it or guard it first. The pack's CM_FloatUnaryCondition is the guard - check IsFinite or IsNaN before the value reaches the math. In practice the useful 90% is Abs, Sqr, Sqrt, Round, and the trig for oscillating schedules (Sin on a counter makes a smooth up-down strength curve).

Installing it

Part of ComfyUI-JakeUpgrade:

cd ComfyUI/custom_nodes
git clone https://github.com/jakechai/ComfyUI-JakeUpgrade
cd ComfyUI-JakeUpgrade
# Windows standalone: install.bat
# or: python_embeded\python.exe -s -m pip install -r requirements.txt
pip install -r requirements.txt   # non-Windows

Or ComfyUI Manager, search "JakeUpgrade", install, restart. Nothing to download.

Gotchas

• Domain errors stop the whole queue. This is the node's biggest trap; guard inputs or clamp before math.
• Round/Floor/Ceil return floats here, not ints - there's no silent type conversion, so route through CM_FloatToInt if a downstream node insists on integers.
• Manager's JakeUpgrade / IPAdapter_plus conflict warning is a false positive from the pack's replacement/ folder.
• ComfyUI-MultiGPU causes CUDA errors with recent ComfyUI - disable it per the README.