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| Firstly, the Mathematica code is given as ``` A = -2/3000; F = (7 Sinh[\[Xi] - 0.3 t])/(30 Cosh[\[Xi] - 0.3 t]) - ( 23 Sinh[\[Xi] - 0.3 t])/(60 (Cosh[\[Xi] - 0.3 t])^3) + ( 7 Sinh[\[Xi] - 0.1 t])/(15 Cosh[\[Xi] - 0.1 t]) - ( 23... |
| Thank you for your notification, I will pay attention to this matter. |
| Sorry for the mistake, it does function. |