Number of significant digits for arithmetic operations

[tomohiro-nishio-jq]

Hello!
I just happened to find this issue.

This is a part of the log file when Esmini is run.
If you look at the last line, you will see that the calculation results have been rounded.

esmini GIT REV: 39f31f9
esmini GIT TAG: v2.20.5
esmini GIT BRANCH: tags/v2.20.5^0
esmini BUILD VERSION: 2.20.5.build.2190
Run simulation decoupled from realtime, with fixed timestep: 0.01
Generated seed 2044050857
Loading test.xosc (v1.1)
OpenDRIVE: test.xodr
Scenegraph: None
Expr ${$Target_Position - $Offset} = 13.88888888888889 - 0.0 = 13.888890

The effective number of digits now is 6, but I think we may need more precise calculation results.
For example, to convert the commonly used km/h to m/s.
In fact, the simulation results were sometimes different with and without the calculation.

Is it possible to increase the number of significant digits?

[eknabevcc]

Yes it's possible. We changed internal representation from float (32 bits) to double (64 bits).
Included in release v2.20.6.

Please test and report if it's good enough.

[tomohiro-nishio-jq]

Sorry for late reply.
Using v2.20.7, I checked that the changes are as intended.
Thank you!!