MATLAB: The input character is not valid in MATLAB statements or expressions.

error: the input character is not valid in matlab statements or expressions.

Hi everyone, i've a problem with a line in this code. Could someone help me?
for i=1:righe
    isp1=isp(i,1);
    isp2=isp(i,2);
      [m0_min,dv1_opt]=codice_parametrico(ks1,ks2,mpl,v,isp1,isp2);
      M0_min(i,1)=m0_min;
      Dv1_opt(i,1)=dv1_opt;
      esponenziale(i,1)=exp(-((1-Dv1_opt(i,1)/100).*v)./(isp2.*9.807));
      M2_min(i,1) = M0_min(i,1).*esponenziale(i,1);_
      acceleration(i,1) = thrust(i,1)./M0_min(i,1);
      acceleration(i,2) = thrust(i,2)./M2_min(i,1);
end
When i try to fill the M2_min array matlab tell me the error. Previously i initialize M2_min as an M2_min=zeros(righe,1). I don't know where i make a mistake

Best Answer

Check this line:
M2_min(i,1) = M0_min(i,1).*esponenziale(i,1);_
There is some _ at the end of line after semi colon......delete it.
M2_min(i,1) = M0_min(i,1).*esponenziale(i,1);
This should work:
for i=1:righe
    isp1=isp(i,1);
    isp2=isp(i,2);
      [m0_min,dv1_opt]=codice_parametrico(ks1,ks2,mpl,v,isp1,isp2);
      M0_min(i,1)=m0_min;
      Dv1_opt(i,1)=dv1_opt;
      esponenziale(i,1)=exp(-((1-Dv1_opt(i,1)/100).*v)./(isp2.*9.807));
      M2_min(i,1) = M0_min(i,1).*esponenziale(i,1);
      acceleration(i,1) = thrust(i,1)./M0_min(i,1);
      acceleration(i,2) = thrust(i,2)./M2_min(i,1);
  end
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