| Line 4,165: | 
Line 4,165: | 
|   | {| align="center"  |   | {| align="center"  | 
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| − | | height="36px" |  | + | | height="36px" | <math>\operatorname{d}x</math>  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>(\operatorname{d}x)</math>  | 
|   | |}  |   | |}  | 
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|   | {| align="center"  |   | {| align="center"  | 
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| − | | height="36px" |  | + | | height="36px" | <math>\operatorname{d}x</math>  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>(\operatorname{d}x)</math>  | 
|   | |}  |   | |}  | 
|   | |  |   | |  | 
|   | {| align="center"  |   | {| align="center"  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>(\operatorname{d}x)</math>  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>\operatorname{d}x</math>  | 
|   | |}  |   | |}  | 
|   | |  |   | |  | 
|   | {| align="center"  |   | {| align="center"  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>(\operatorname{d}x)</math>  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>\operatorname{d}x</math>  | 
|   | |}  |   | |}  | 
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| Line 4,208: | 
Line 4,208: | 
|   | {| align="center"  |   | {| align="center"  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>(\operatorname{d}x,\ \operatorname{d}y)</math>  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>((\operatorname{d}x,\ \operatorname{d}y))</math>  | 
|   | |}  |   | |}  | 
|   | |  |   | |  | 
|   | {| align="center"  |   | {| align="center"  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>((\operatorname{d}x,\ \operatorname{d}y))</math>  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>(\operatorname{d}x,\ \operatorname{d}y)</math>  | 
|   | |}  |   | |}  | 
|   | |  |   | |  | 
|   | {| align="center"  |   | {| align="center"  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>((\operatorname{d}x,\ \operatorname{d}y))</math>  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>(\operatorname{d}x,\ \operatorname{d}y)</math>  | 
|   | |}  |   | |}  | 
|   | |  |   | |  | 
|   | {| align="center"  |   | {| align="center"  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>(\operatorname{d}x,\ \operatorname{d}y)</math>  | 
|   | |-  |   | |-  | 
| − | | height="36px" |  | + | | height="36px" | <math>((\operatorname{d}x,\ \operatorname{d}y))</math>  | 
|   | |}  |   | |}  | 
|   | |-  |   | |-  |