# Extrema
compute extremal values

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<title>data_in</title></rect>
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<text x="1.9em" y="0.9em" class="text" >input data<tspan> (data_in)</tspan></text>
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<title>data_out</title></rect>
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<text x="1.9em" y="5.8999999999999995em" class="text" >output data<tspan> (data_out)</tspan></text>
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## Parameters
|name|description|type|
|-|-|-|
|min|output parameter: minimum|Vector|
|max|output parameter: maximum|Vector|
|min_block|output parameter: block numbers containing minimum|IntVector|
|max_block|output parameter: block numbers containing maximum|IntVector|
|min_index|output parameter: indices of minimum|IntVector|
|max_index|output parameter: indices of maximum|IntVector|