h.ordtsg

来自「强大的数学工具包」· ORDTSG 代码 · 共 17 行

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                               *  ordtsg   *
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        "order of the Tate-Shafarevich group"
        SYNTAX: X = ordtsg(E)

        E is an expression whose value is an elliptic curve over Q.
        
        X is assigned the order of the Tate-Shafarevich group of E.

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