Rates conversion

Quant Lab · not persisted · continuous zero ↔ discount factor via C++

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Rates conversion

Educational transforms between rate conventions. Start with continuous compounding — more blocks (forwards, …) later.

Continuous compounding \(DF = e^{-z\,t}\) · C++ numeraire_cpp
Zero → discount
\[ DF = P(0,t) = e^{-z\,t} \]
Discount → zero
\[ z = -\frac{\ln(DF)}{t},\quad t > 0 \]

Absolute rates (0.05 = 5%). Tenor \(t\) in years.

zDF
DFz
c++_rates · z → DF
DF 0.95122942
round-trip z = 0.05000000 (input z = 0.05000000)
z Zero · DF Discount · t Tenor