MyWikiBiz, Author Your Legacy — Monday September 08, 2025
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4 bytes added
, 02:38, 21 June 2008
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| <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>\operatorname{d}f|_{x\ y}\!</math> | + | | <math>\operatorname{d}f|_{x\, y}\!</math> |
− | | <math>\operatorname{d}f|_{x\ (y)}\!</math> | + | | <math>\operatorname{d}f|_{x\, (y)}\!</math> |
− | | <math>\operatorname{d}f|_{(x)\ y}\!</math> | + | | <math>\operatorname{d}f|_{(x)\, y}\!</math> |
| | <math>\operatorname{d}f|_{(x)(y)}\!</math> | | | <math>\operatorname{d}f|_{(x)(y)}\!</math> |
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