# Glossary of Symbols and Abbreviations

 ${a}_{\overline{n\hspace{.2em}|}}$j discount factor for n payments and rate j B(t) or Bt value of a risk-free security (e.g. a bond or a bank account) at time t b(x; n, p) probability mass function for the binomial law Bin(n, p) ℬ(x; n, p) (cumulative) probability distribution function for the binomial law Bin(n, p) Bin(n, p) binomial probability distribution with number of trials n and success probability p CA American call CE European call CDF cumulative (probability) distribution function Corr(X, Y) correlation coefficient of X and Y Cov(X, Y) covariance of X and Y CRR Cox–Ross–Rubinstein D downward move in a binomial tree div dividend D(t, T) discount factor from time t to time T D(t) ≡ D(0, t

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