# Revision history [back]

### Laplace of the difference of another variable in sage

Why did the diff(y.laplace(t,s),x) come out to be D0(y(x, t), t, s)*D0(x, t)? Could someone help me?

 2 fixed formatting calc314 4081 ●19 ●44 ●108

### Laplace of the difference of another variable in sage

Why did the diff(y.laplace(t,s),x) come out to be D0(y(x, D[0](laplace)(y(x, t), t, s)*D0(x, t)? s)*D[0](y)(x, t)? Could someone help me?

### Laplace of the difference differential of another variable in sage

Why did the diff(y.laplace(t,s),x) come out to be D[0](laplace)(y(x, t), t, s)*D[0](y)(x, t)? Could someone help me?