正: the first month of the lunar ...态: form; condition; appearance密度: density; thickness函数: function图: picture; chart; drawing; map正态密度函数: normal density function标准常态密度函数: standard normal density function正态密度: normal density二元正态概率密度函数: bivariate normal probability density function; bivariatenormalprobabilitydensityfunction正态分布概率密度函数: normpdf类密度函数: class density function密度函数: de ity function; de ityfunction; depotition function; dichtefunktion density function; frequency function密度函数矩: moment of density function谱密度函数: spectral density function正态分布累计概率密度函数: normcdf正态分布逆累计概率密度函数: norminv密度函数 概率密度函数: densityfunction边际密度函数: marginal density function边缘密度函数: marginal density function泊松密度函数: poisson density functions二项密度函数: binomial density functions二元密度函数: bivariate density function概率密度函数: frequency function; function of density of probability; probability density function (pdf); probability function; probability-density functon; probabilityde ityfunction故障密度函数: failure de ity function; failure density function恒星密度函数: stellar density function