h.derivl

来自「强大的数学工具包」· DERIVL 代码 · 共 31 行

                               * * * * * * *
                               *  derivL   *
                               * * * * * * *

        "derivation of L-series"
        SYNTAX: X = derivL(r, E)

        r is an expression whose value is a nonnegative integer.
        E is an expression whose value is an elliptic curve over Q.
        
        X is assigned the value of the r-th derivation of the 
        L-series L( E, s ) at s=1.

        Remark: It makes only sense to compute the odd derivations
                if the sign of the functional equation of E is -1
                and to compute the even derivations if the sign
                is 1.

        
        Example 1: (correct)
                
                derivL( 1, EC( 1, 0, 0, 1, 2 ) )        


        Exapmle 2: (incorrect)

                derivL( EC( 2, 0, 4, 1, 5 ) )

_ERR_NR_232