7.4.3.5.role_direction_both_rate.cellml

<?xml version="1.0" encoding="UTF-8"?>
<!-- CellML Test Suite. https://github.com/MichaelClerx/cellml-validation -->
<!-- CellML 1.0, 7.4.3.5: A rate must have direction forward -->
<model name="role_direction_both_rate"
       xmlns="http://www.cellml.org/cellml/1.0#"
       xmlns:cellml="http://www.cellml.org/cellml/1.0#">
  <component name="x">
    <variable name="A" units="dimensionless" initial_value="20" />
    <variable name="B" units="dimensionless" initial_value="20" />
    <variable name="C" units="dimensionless" initial_value="5" />
    <variable name="r" units="dimensionless" />
    <reaction>
      <variable_ref variable="A">
        <role role="reactant" />
      </variable_ref>
      <variable_ref variable="B">
        <role role="reactant" />
      </variable_ref>
      <variable_ref variable="C">
        <role role="product" />
      </variable_ref>
      <variable_ref variable="r">
        <role role="rate" direction="both">
          <math xmlns="http://www.w3.org/1998/Math/MathML">
            <apply>
              <eq/>
              <ci>r</ci>
              <cn cellml:units="dimensionless">1</cn>
            </apply>
          </math>
        </role>
      </variable_ref>
    </reaction>
  </component>
</model>