temsalri lujvo

x1 is the differintegral of x2 with respect to time of differintegral order x3 and with starting point/initial condition/point (in time and possibly other inputs) at which evaluation is taken x4.

In notes:

salri
x1 is the differintegral of x2 with respect to x3 of order x4, with differintegration being according to definition/specification or of type x5.
salrixo
x1 is the differintegral of x2 with respect to x3 of order x4, with differintegration being according to definition/specification or of type x5.