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Specifies the type of spacing between columns and rows in the OMathMatrix structure or items' vertical spacing in the OMathEquationArray structure.
public enum OMathSpacingRule
Double = 2
Double spacing (2 em).
Exactly = 3
The spacing value defined in points.
Multiple = 4
The spacing value defined in ems.
OneAndHalf = 1
One and half spacing (1.5 em).
Single = 0
Single spacing (1 em).