| 1. | Is the total differential and is a Lepage equivalent of.
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| 2. | Up to a total differential ( exact form ).
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| 3. | Taking a surface of constant pressure ( dP = 0 ) the total differential becomes:
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| 4. | The total differential is then rigorously defined as
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| 5. | The total differentials of the functions are:
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| 6. | The total differential of the Gibbs free energy G \, in terms of its natural variables is
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| 7. | The result is the differential change \ operatorname df in, or total differential of, the function f.
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| 8. | A Legendre transformation is performed to change the variables in the total differential of the generalized coordinate space Lagrangian;
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| 9. | The sum of the partial differentials with respect to all of the independent variables is the "'total differential "'
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| 10. | In 1985 two six-pulse valve groups of thyristors were added to increase the voltage to 500 kV per pole for a total differential voltage of 1, 000 kV.
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