normal probability integral

'normal... ... normal integral 正规积分 normal probability integral 正态概率积分 normal error integral 正态误差积分 ...

常态分布积分(Normal probability integral)=1/√(2π)*∫e^(-tt/2)dt ｜from-x→x:=erf(x/√2)=x√(2/π)[1-xx/(3*1!*2) x^4/(5*2!*2^2)-x^...