Question

Log Function in mendix

0

n = ln(1/(1-(Pv*R)/P))/ln(1+R) How to add ln function in microflows

asked 2024-02-28

Mahesh Nayudu

2 answers

Shreyas Garsund · Answer 1 · 2024-02-28

Hello Mahesh,

You can try the math module from the marketplace https://marketplace.mendix.com/link/component/112522.

Alternatively you can build your log logic in a java action utilizing Java math classes; and send these values as parameters to this action in a microflow.

Let me know if this helps.

Regards,

Shreyas

Mahesh Nayudu · Answer 2 · 2024-02-28

Based on my formula in separated formula into 2 steps and add everything in string at the end i pass that value in java action but it throws error

[ln(-0.0000000002138563469932250260840754268221113)divln(0.09054166666666666666666666666666667)] checking ...[ln(-0.0000000002138563469932250260840754268221113)divln(0.09054166666666666666666666666666667)] lexical error

Encountered " <IDENTIFIER> "divln "" at line 1, column 51.Was expecting one of: <EOF> "+" ... "-" ... "*" ... "/" ... "^" ... "^^" ... "#" ... "!" ... "%" ... <EQ> ... <NEQ> ... "<" ... "<=" ... ">" ... ">=" ... <OR> ... <AND> ... "-->" ... "<--" ... "-/>" ... "</-" ... <NAND> ... "<->" ... <NOR> ... <BITWISE> ... "(+)" ... [ln(-0.0000000002138563469932250260840754268221113)divln(0.09054166666666666666666666666666667)] errors were found.