This is why banking apps use integer variables and math supported by COBOL:
01 MY-BALANCE PIC S9(6)V9(2) USAGE COMP3.
"Comp3" directs creation of a packed decimal data type ( integer).
the floating point internal representation in computers is imprecise. (lookup IEEE 754).
You can can fun entering various floating point numbers at this page:
https://www.h-schmidt.net/FloatConverter/IEEE754.html
(enter number on the "Decimal representation" and see how it gets converted and the resulting error. (some numbers such as 5.25 convert cleanly, but 5.24 won't).
Jean-Francois Mezei
npub1v3…c3sjg
2025-12-31 04:24:59 UTC
in reply to nevent1q…drel
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npub1v3ecul8au8n5m0gnve0uq794se7gk4fw65uheh46e2r05y2csmgq8c3sjgSeen on
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2025-12-31 04:24:59 UTCEvent JSON
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