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 Author Comment/Response Sunny Wong 02/26/04 8:46pm I was trying to plot the wave function of the molecular orbital for a hydrogen molecule (assuming that the MO wave function is a linear combination of the individual wave functions of a H atom), but what i've been getting is: Z = 1 R1s[r_] := 2*(Z/(0.529*10^-10\))^(3/2)* Exp[-((Z*r/(0.529*10^-10)] R1s2[r_] := 2*((Z/ 0.529*10^-10))^(3/2)*Exp[-Z(r + 75*10^-10)/(0.529*10^-10)] MOhydrogen[r_] := R1s[r] + R2s[r] Plot[MOhydrogen[r], {r, 0, 100*10^-12}] and out came: Plot::plnr : MOhydrogen[r] is not a machine-size real number at r = 4.166666666666667`*^-18 Plot::plnr: MOhydrogen[r] is not a machine-size real number at r = 4.0566991572915795`*^-12. and so on and so forth. The interesting thing is, the plot function worked just fine when i'm just plotting R1s[r] or R1s2[r] separately can anyone tell me what's going on? URL: ,

 Subject (listing for 'Machine sized real number error') Author Date Posted Machine sized real number error Sunny Wong 02/26/04 8:46pm Re: Machine sized real number error Forum Modera... 02/27/04 3:31pm Re: Machine sized real number error Timothy Choi 02/28/04 11:44am
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