Define these terms used in the finite difference formulation: node, nodal network, volume element, nodal spacing, and difference equation.
What will be an ideal response?
A point at which the finite difference formulation of a problem is obtained is called a node, and all the nodes for a problem constitute the nodal network. The region about a node whose properties are represented by the property values at the nodal point is called the volume element. The distance between two consecutive nodes is called the nodal spacing, and a differential equation whose derivatives are replaced by differences is called a difference equation.
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What will be an ideal response?