Arithmetic operators helpers

[jsapede]

Basic arithmétic operators such as différence, multiplication, division, square Root, squared,

How is ont possible to get such huge functionnality in ha and dont even have the ability to easily do différence between two sensors values ?

[jchh (my username is my initials (and my first name isn't John))]

This is possible. What are you trying to do?

[123 (Taras)]

@jsapede

operators such as différence, multiplication, division, square Root, squared,

Templating - Numeric Functions and Filters

Example of subtracting two sensor values:

Helper: Subtract/Add/devide/multiply two sensor values

Until a ‘Subtract Two Sensors’ Helper is implemented (if ever) here’s how to do it with a simple Template Sensor. In the following example, the goal is to subtract the value of sensor.subtrahend from the value of sensor.minuend and report the result in sensor.difference. template: - sensor: - name: Difference state: "{{ states('sensor.minuend') | float(0) - states('sensor.subtrahend') | float(0) }}" How the template works: states('sensor.minuend') gets the state value of se…

You can also create that example, via the UI, using a Template Helper.

Speaking of helpers, the Min/Max helper lets you calculate:

min, max, mean, median or sum from a list of input sensors.

[jsapede]

For sure its possible in yaml…
But there are “sum” helpers in the interface, why other operators arent easily available as "“sum”

[jchh (my username is my initials (and my first name isn't John))]

@jsapede

For sure its possible in yaml…
But there are “sum” helpers in the interface

This is the first time you have mentioned the interface…

[jsapede]

Sorry if it wasnt clear enough
it only look strange that only “sum” operator was impelemented in helpers interface