curve integral now working in pocket calculator.

pub/lib/node.hpp

@@ -112,6 +112,7 @@ class CNodeGeni: public CNodeWithArgs {
     CNodeGeni( const class CGeni *_geni, RNode a0, RNode a1 );
     const RObj tree_val( const CContext& ctx ) const;
     void set_coord( CCoord& ret, int k ) const;
+    void kdep_exec( bool *kd ) const { *kd = true; }
     string tree_info() const;
 };
 
@@ -126,6 +127,7 @@ class CNodeCvin: public CNodeWithArgs {
     CNodeCvin( const class CCvin *_cvin, RRef _ref, RNode a0, RNode a1 );
     const RObj tree_val( const CContext& ctx ) const;
     void set_coord( CCoord& ret, int k ) const;
+    void kdep_exec( bool *kd ) const { *kd = true; }
     string tree_info() const;
 };