1. 10 Dec, 2020 2 commits
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  6. 14 Feb, 2019 1 commit
    • Joseph Weston's avatar
      add 'parameters' property to all system/lead implementations · 65e0e29b
      Joseph Weston authored
      Specifically: finalized Builder, PrecalculatedLead,
                    ModesLead and SelfEnergyLead
      
      This can be used to inspect the parameters on which a system depends,
      and can be later used to give more informative error messages.
      
      Adding 'parameters' to ModesLead and SelfEnergyLead is strictly a
      backwards-incompatible change, however this is an advanced feature of
      Kwant and we don't want to let this block adding 'parameters' to the
      system API.
      65e0e29b
  7. 21 Feb, 2017 1 commit
    • Joseph Weston's avatar
      allow systems to accept named parameters · 886d083c
      Joseph Weston authored
      Hamiltonian value functions may now have signatures that depend on
      different parameters. On finalization, Builders now inspect all of their
      value functions and store the names of the parameters on which the value
      function depends. Then, when evaluating the Hamiltonian, a particular
      value function is only passed the parameters on which it depends.
      
      'System.hamiltonian' has been updated to accept an extra keyword-only
      parameter, 'params', which is a dictionary mapping parameter names to
      values. This is mutually exclusive with the existing '*args'. All
      top-level API that takes an 'args' parameter now also takes a
      keyword-only parameter, 'params'
      886d083c
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