The problem
Different results usually come down to hidden assumptions: silent rounding, implicit unit conversions, unstated defaults. When the math is opaque, trust breaks down.
What concentration actually means
Concentration is simply amount ÷ volume. Nothing more. If either value changes, the result changes. Problems occur when tools assume defaults instead of requiring explicit input.
Why deterministic math matters
Deterministic math means:
- Same inputs → same result.
- Past results don't change behind your back.
- No silent recomputation.
This is critical when results are reused later.
How PepCalc Pro handles it
- Locks calculation snapshots
- Never recalculates historical results
- Makes all rounding behavior explicit
- Allows verification through a "show your work" view
