I have a system with some differential equations. The equations are coupled, in this way: $f'_n(x)=Af_{n-1}(x)+Bf_{n+1}(x)+Cf_n$. I would like to solve the system. I am a beginner in Mathematica. Could someone help me?
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Welcome to Math.SE. Do you intend to solve the system numerically? Please note that there is also a site specifically dedicated to Mathematica. – Ertxiem - reinstate Monica Apr 18 '19 at 13:58
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Thank you for your answer. Numerically or analytically, it's not the case. I want to solve it :). – Cícero Julião Apr 18 '19 at 14:03
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Thank you too for this link. I didn't know about https://mathematica.stackexchange.com/ – Cícero Julião Apr 18 '19 at 14:04