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    <p>Michel,</p>
    <p> The getNumericalSolution() and setNumericalValue() routines are
      not specific to the battery component. They are used to solve
      differential equations numerically when the equation cannot be put
      into the form dX/dt = aX + b (where a and b are constants over the
      timestep). The dX/dt = aX + b form can be solved analytically by
      calling the solveDiffEq() subroutine. For additional information
      refer to the 07-ProgrammersGuide manual</p>
    <p>kind regards,</p>
    <p> David</p>
    <p><br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 10/30/2018 15:54, Michel Tamarzians
      via TRNSYS-users wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAPCNZs4mXrGr7mOvUQJNBiNHw_1mCskidYQrw9V-xMdumtXhCw@mail.gmail.com">
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        <div>Hi all, <br>
        </div>
        <div><br>
        </div>
        <div>I am trying to use the lead-acid battery component
          (Type47a) in TRNSYS but I have a hard time understanding what
          the "Call SetNumericalDerivatie" and "GetNumericalSolution"
          functions are doing when using the battery in mode 1.</div>
        <div>Can someone perhaps explain this or direct me towards an
          example?</div>
        <div><br>
        </div>
        <div>Thanks in advance!</div>
        <div><br>
        </div>
        <div>Kind regards, <br>
        </div>
        <div>Michel<br>
        </div>
      </div>
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</pre>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>

<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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