* performs contraction of dummy indices where possible and checks whether
* the free indices in sums are consistent.
*
+ * @param options Simplification options (currently unused)
* @return simplified expression */
ex ex::simplify_indexed(unsigned options) const
{
* scalar products by known values if desired.
*
* @param sp Scalar products to be replaced automatically
+ * @param options Simplification options (currently unused)
* @return simplified expression */
ex ex::simplify_indexed(const scalar_products & sp, unsigned options) const
{