1 | initial version |

Your code is giving me an error different from the one indicated, because the definition of fksin needs to be moved down below the definition of w. After that it produces the correct answer for me in both Sage 6.9 and 7.1.

Have you modified your Sage installation in the last year?

2 | No.2 Revision |

Your code is giving me an error different from the one indicated, because the definition of ~~fksin ~~`fksin`

needs to be moved down below the definition of ~~w. ~~`w`

. After that it produces the correct answer for me in both Sage 6.9 and 7.1.

Have you modified your Sage installation in the last year?

3 | No.3 Revision |

Your code is giving me an error different from the one indicated, because the definition of `fksin`

needs to be moved down below the definition of `w`

. After that it produces the correct answer for me in both Sage 6.9 and 7.1.

~~Have you modified your ~~EDIT: have verified the error occurs for SMC, which is running Sage ~~installation in the last year?~~6.10

4 | No.4 Revision |

Your code is giving me an error different from the one indicated, because the definition of `fksin`

needs to be moved down below the definition of `w`

. After that it produces the correct answer for me in both Sage 6.9 and 7.1.

EDIT: have verified the error occurs for SMC, which is running Sage ~~6.10~~6.10 as indicated in the error message

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