Using Scriptable Controls with API for Calculations

Controls > Advanced Controls > Automation in Scriptable Controls > Using Scriptable Controls with API for Calculations

1. Plot a function using the Slider advanced control in 2 ways: Using the slider’s output and using the worksheet's input.

2. Plot the function.

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          <axisGrid>
            <gridFrequency>11</gridFrequency>
            <gridLabels display="true" />
            <gridLines />
            <tickMarks display="true" />
          </axisGrid>
          <axisLabel />
          <markers />
          <plotEquations>
            <plotEquation>
              <math>
                <id xml:space="preserve" xmlns="http://schemas.mathsoft.com/math50">x</id>
              </math>
              <math>
                <placeholder xmlns="http://schemas.mathsoft.com/math50" />
              </math>
            </plotEquation>
          </plotEquations>
          <xyDomain scale-type="linear" auto-scale="true">
            <startValue>
              <placeholder xmlns="http://schemas.mathsoft.com/math50" />
            </startValue>
            <endValue>
              <placeholder xmlns="http://schemas.mathsoft.com/math50" />
            </endValue>
          </xyDomain>
        </xAxis>
        <yAxis rank="1" legend-position="PlotBoundaryRight" start="-1.5" end="1.5">
          <axisLine position="origin" positionticmark="5" legendWidth="90.2833333333333" />
          <axisGrid>
            <gridFrequency>11</gridFrequency>
            <gridLabels display="true" />
            <gridLines />
            <tickMarks display="true" />
          </axisGrid>
          <axisLabel />
          <markers />
          <plotEquations>
            <plotEquation>
              <math>
                <apply xmlns="http://schemas.mathsoft.com/math50">
                  <id labels="VARIABLE" xml:space="preserve" label-is-contextual="true">f1</id>
                  <id xml:space="preserve">x</id>
                </apply>
              </math>
              <math>
                <placeholder xmlns="http://schemas.mathsoft.com/math50" />
              </math>
            </plotEquation>
          </plotEquations>
          <xyDomain scale-type="linear" auto-scale="true">
            <startValue resultRef="19">
              <real xmlns="http://schemas.mathsoft.com/math50">-1.5</real>
            </startValue>
            <endValue resultRef="20">
              <real xmlns="http://schemas.mathsoft.com/math50">1.5</real>
            </endValue>
          </xyDomain>
        </yAxis>
      </axes>
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  </plot>
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3. Use the API to update the slider input and modify the function. The following slider calls the Mathcad API. You can copy the example to your worksheet to see the full script.

4. Set an input variable.

After you copy this expression to your worksheet, you must use Input/Output > Assign Inputs to assign x2 as an input variable

5. Compare the results. You can see that both methods provide similar results.

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        <xAxis rank="1" legend-position="PlotBoundaryBottom" start="-10" end="10">
          <axisLine position="origin" positionticmark="5" legendWidth="60.93" />
          <axisGrid>
            <gridFrequency>11</gridFrequency>
            <gridLabels display="true" />
            <gridLines />
            <tickMarks display="true" />
          </axisGrid>
          <axisLabel />
          <markers />
          <plotEquations>
            <plotEquation>
              <math>
                <id xml:space="preserve" xmlns="http://schemas.mathsoft.com/math50">x</id>
              </math>
              <math>
                <placeholder xmlns="http://schemas.mathsoft.com/math50" />
              </math>
            </plotEquation>
          </plotEquations>
          <xyDomain scale-type="linear" auto-scale="true">
            <startValue>
              <placeholder xmlns="http://schemas.mathsoft.com/math50" />
            </startValue>
            <endValue>
              <placeholder xmlns="http://schemas.mathsoft.com/math50" />
            </endValue>
          </xyDomain>
        </xAxis>
        <yAxis rank="1" legend-position="PlotBoundaryRight" start="-1.5" end="1.5">
          <axisLine position="origin" positionticmark="5" legendWidth="90.2833333333333" />
          <axisGrid>
            <gridFrequency>11</gridFrequency>
            <gridLabels display="true" />
            <gridLines />
            <tickMarks display="true" />
          </axisGrid>
          <axisLabel />
          <markers />
          <plotEquations>
            <plotEquation>
              <math>
                <apply xmlns="http://schemas.mathsoft.com/math50">
                  <id labels="VARIABLE" xml:space="preserve" label-is-contextual="true">f2</id>
                  <id xml:space="preserve">x</id>
                </apply>
              </math>
              <math>
                <placeholder xmlns="http://schemas.mathsoft.com/math50" />
              </math>
            </plotEquation>
          </plotEquations>
          <xyDomain scale-type="linear" auto-scale="true">
            <startValue resultRef="26">
              <real xmlns="http://schemas.mathsoft.com/math50">-1.5</real>
            </startValue>
            <endValue resultRef="27">
              <real xmlns="http://schemas.mathsoft.com/math50">1.5</real>
            </endValue>
          </xyDomain>
        </yAxis>
      </axes>
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