Create Multidimensional Optimization Expressions

Create a 3-by-4-by-2 array of optimization expressions.

expr = optimexpr(3,4,2)

expr = 

  3×4×2 OptimizationExpression array with properties:

    IndexNames: {{}  {}  {}}

  See expression formulation with showexpr.

Create a 3-by-4 array of optimization expressions where the first dimension is indexed by the strings "brass","stainless", and "galvanized", and the second dimension is numerically indexed.

bnames = ["brass","stainless","galvanized"];
expr = optimexpr(bnames,4)

expr = 

  3×4 OptimizationExpression array with properties:

    IndexNames: {{1×3 cell}  {}}

  See expression formulation with showexpr.

Create an expression using a named index indicating that each stainless expression is 1.5 times the corresponding x(galvanized) value.

x = optimvar('x',bnames,4);
expr('stainless',:) = x('galvanized',:)*1.5;
showexpr(expr('stainless',:))

('stainless', 1)

  1.5*x('galvanized', 1)

('stainless', 2)

  1.5*x('galvanized', 2)

('stainless', 3)

  1.5*x('galvanized', 3)

('stainless', 4)

  1.5*x('galvanized', 4)