MyWikiBiz, Author Your Legacy — Saturday October 25, 2025
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60 bytes added
, 20:44, 20 June 2008
| Line 7,996: |
Line 7,996: |
| | <p><math>\operatorname{d}^2 f = </math></p> | | <p><math>\operatorname{d}^2 f = </math></p> |
| | <p><math>\partial_{xy} f \cdot \operatorname{d}x\ \operatorname{d}y</math></p> | | <p><math>\partial_{xy} f \cdot \operatorname{d}x\ \operatorname{d}y</math></p> |
| − | | <math>df|_{x\ y}\!</math> | + | | <math>\operatorname{d}f|_{x\ y}\!</math> |
| − | | <math>df|_{x\ (y)}\!</math> | + | | <math>\operatorname{d}f|_{x\ (y)}\!</math> |
| − | | <math>df|_{(x)\ y}\!</math> | + | | <math>\operatorname{d}f|_{(x)\ y}\!</math> |
| − | | <math>df|_{(x)(y)}\!</math> | + | | <math>\operatorname{d}f|_{(x)(y)}\!</math> |
| | |- | | |- |
| | | <math>f_0\!</math> | | | <math>f_0\!</math> |