It changes the default shape of capital Greek letters to italic, sets up bold italic and sans-serif bold italic math alphabets with Latin and Greek characters, and defines macros for markup of vector, matrix and tensor symbols. In their style guides, e. The overall rule is that symbols representing physical quantities or variables are italic, but symbols representing units, or labels, are roman. Symbols for vectors and matrices are bold italic, symbols for tensors are sans-serif bold italic. It can be combined with most packages for mathematical typesetting see isomath-test.
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