KMV模型用来计算违约率和违约距离，已知违约率求市场波动率-KMV model is used to calculate the default rate and default distance, the known default rate for the market volatility

利用权益、负债、权益波动率，用期权的思维来计算违约概率违约距离(Using the equity, debt, and equity volatility, the default distance of default probability is calculated by option thinking)

KMV模型求解-方程与方程组的数值解、KMV模型方程组的求解(KMV Model Solution - Numerical Solution of Equations and Systems and Solution of KMV Model Equations)