) from the Definitions node under the Component (local) nodes. If Group by Type is active, the variable utility nodes appear in the Variable Utilities (
branch. ) from the Definitions node under the Component (local) nodes. If Group by Type is active, the variable utility nodes appear in the Variable Utilities ( branch.
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To display the Variable Utilities node and its subnodes, click the Show More Options button (
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Expression Operator: for defining an operator that evaluates to arbitrary parameterized expressions on specified selections. See Expression Operator.
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Matrix Inverse: for computing a matrix inverse from an input matrix. See Matrix Inverse.
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Matrix Diagonalization: for diagonalization of a matrix, computing the eigenvalues and eigenvectors of a symmetric 3x3 matrix from an input matrix. See Matrix Diagonalization.
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Matrix Decomposition (SVD): for computing a matrix decomposition using SVD (singular value decomposition) from an input matrix. This node computes singular values, singular vectors, a rotation matrix, and a stretch matrix from a general 1x1 to 9x9 matrix. See Matrix Decomposition (SVD).
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Vector Transform: for transforming a vector of component expressions from one coordinate system to another. See Vector Transform.
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Matrix Transform: for transforming rows or columns of a matrix of component expressions from one coordinate system to another. See Matrix Transform.
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State Variables: for defining dependent variables that are updated using an update expression before or after each completed solver step. See State Variables.
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Participation Factors: for computing modal participation factors. See Participation Factors.
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Response Spectrum: for computing modal participation factors and setting up data for a response spectrum analysis. See Response Spectrum.
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Mass Properties: for computing mass properties such as mass, volume, and center of mass. See Mass Properties.
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