For the point (x0, Y0, Z0), t tends to 0, and the function f () satisfies f（x0+t,y,z)=f(x0,y0,z0)*P(y-y0,z-z0）； Where p () is a two-dimensional normal distribution function related to y-y0 and z-z0, Given the initial value of F (x0, Y0, Z0), I want to find the value of any f (x1, y, z) at x = x1, as long as I think about it If you can do it, I'll give you my share The fairy on the first floor f(x0,y0,z0)*P(y-y0,z-z0）-f（x0,y,z) =F (x0, Y0, Z0) (P (y-y0, z-z0) - 1) is not very right, I'm changing f (x0 + T, y, z) = f (x0, Y0, Z0) * P (y-y0, z-z0) × exp (- at); a is a known constant

For the point (x0, Y0, Z0), t tends to 0, and the function f () satisfies f（x0+t,y,z)=f(x0,y0,z0)*P(y-y0,z-z0）； Where p () is a two-dimensional normal distribution function related to y-y0 and z-z0, Given the initial value of F (x0, Y0, Z0), I want to find the value of any f (x1, y, z) at x = x1, as long as I think about it If you can do it, I'll give you my share The fairy on the first floor f(x0,y0,z0)*P(y-y0,z-z0）-f（x0,y,z) =F (x0, Y0, Z0) (P (y-y0, z-z0) - 1) is not very right, I'm changing f (x0 + T, y, z) = f (x0, Y0, Z0) * P (y-y0, z-z0) × exp (- at); a is a known constant

Because: F (x0 + T, y, z) - f (x0, y, z) = f (x0, Y0, Z0) * P (y-y0, z-z0) - f (x0, Y0, Z0) (P (y-y0, z-z0) - 1) and f (x0 + T, y, z) - f (x0, y, z) / T = f (x0, Y0, Z0) (P (y-y0, z-z0) - 1) / T, because: F (x0 + T, y, z) - f (x0, y, z) / T = FX '(x