Confusion about a tutorial example

MFiX
#1

Hi, everyone

I am a beginner in programming, and i am learning to write user defined reaction in MFiX. In MFiX 19.3 user guide, 4.13.3.6. Example: Athermal, gas phase, reversible reaction with UDF, reaction equations, ‘A–>R’ and ‘R–>A’, are not written in the curly braces, and “1.0” is not assigned to the variable " fracDH(0) ". Based on these thought, i wrote the code again. Both of them are posted below. Am i right? Why can it be written separately?

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Best regards.
wuming

#2

Thanks for pointing out this issue. The reaction expressions are NOT formatted correctly in both the HTML and PDF versions. Needed to be corrected in the next release.