Domoticz

It seems that value's are converted to floats in a strange way. This value is in the database and display 21.2
Why is that?

That's because of the precision of the data type. You will see the same in Excel when you show a lot of decimals.

You can use string.format to specify how many decimals you want.
Try string.format("%.0f", 21.200000762939)

EddyG wrote: Sunday 07 June 2020 15:26 It seems that value's are converted to floats in a strange way.

Code: Select all

Woonkamer Temperatuur: 21.200000762939

This value is in the database and display 21.2
Why is that?

Short explanation:

because of the way the underlying platform handles floating point numbers, and ultimately with the inaccuracy you’ll always have when writing down numbers as a string of a fixed number of digits.

Long explanation

wiki Floating point

Tnx, That explains a lot.