# MATLAB: How to get a value from inside a function

fminbndfunctionlsqnonlinMATLABmatlab functionoptimization

I'm using the following function in my main program to calculate alpha_def:
alpha_def=fminbnd(@(alpha)fun_a(alpha, data_1, data_2, data_3, data_4, data_5, data_6), -alpha_0, alpha_0, options);
Inside of fun_a, I calculate beta_def the following way:
beta_def=lsqnonlin(@(beta)fun_b(beta, data_3, data_4, data_5, data_6), beta_0)
which is used to calculate alpha_def in fun_a.
After obtaining alpha_def, I need to use the value of beta_def in my main program. Is there a way of getting the value of beta_def from inside fun_a?
Thanks!

``function varargout = fun_a(alpha,data1,data2,data3,data4,data5,data6,beta_out_too)beta_0 = alpha-data1; % or somethingbeta_def=lsqnonlin(@(beta)fun_b(beta, data_3, data_4, data_5, data_6), beta_0);val = sum((beta_def*alpha-data1./data2).^2);varargout{1} = val;if beta_out_too  varargout{2} = beta_def;endend``
``alpha_def=fminbnd(@(alpha)fun_a(alpha, data_1, data_2, data_3, data_4, data_5, data_6,0), -alpha_0, alpha_0, options);% Then call fun_a again to get the beta_def-value you're interested in:[val,beta_optimal] = fun_a(alpha_def, data_1, data_2, data_3, data_4, data_5, data_6,1);'``