# Avoid syntax problems in the following functions?

Posted 1 year ago
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 Good evening! I am working on a quantum mechanics problem using Mathematica and when I typed in the functions I need, I keep getting syntax problem saying " Expression imcomplete, more input needed". I have no idea what is going on. Will anyone help me with it? Thank you so much!!!Input: \!$$\*SuperscriptBox[\(J$$, $$'$$]\)[D_] := N[E, 10]^2/( 4*\[Pi]*Quantity[1, "ElectricConstant"]* Quantity["BohrRadius"]) (1/D - Exp[-2*D] (1/D + 11/8 + (3 D)/4 + D^2/6)) Getting:Syntax::sntxi Input: (J^')[D_]:=N[E,10]^2/(4*\[Pi]*Quantity[1, "ElectricConstant"]*Quantity["BohrRadius"]) (1/D-Exp[-2D]*(1/D+11/8+(3D)/4+D^2/6)) \!$$\*SuperscriptBox[\(K$$, $$'$$]\)[D_] := N[E, 10]^2/( 20*\[Pi]*Quantity[1, "ElectricConstant"]* Quantity[ "BohrRadius"]) (-Exp[-2*D] (-25/8 + 23/4 D + 3 D^2 + 1/3 D^3) + 6/D (\[CapitalDelta]^2 (N[EulerGamma, 10] + Log[D]) + \!$$\*SuperscriptBox[\(\[CapitalDelta]$$, $$'$$]\)^2* ExpIntegralEi[-4 D] - 2*\[CapitalDelta]* \!$$\*SuperscriptBox[\(\[CapitalDelta]$$, $$'$$]\)* ExpIntegralEi[-2 D])) Getting:Syntax::sntxi  Attachments:
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