Example

> what()
abs           eign          length        plot3         sizeof        
acos          eigs          linspace      plprint       solve         
acosh         epsilon       load          plptex        sort          
all           error         log           plstyle       sprintf       
any           eval          log10         plwid         sqrt          
asin          exist         logspace      printf        srand         
asinh         exp           lu            printmat      std           
atan          eye           lyap          prod          strsplt       
atan2         factor        matrix        pstart        strtod        
atanh         fft           max           ptitle        sum           
backsub       filter        maxi          pwin          svd           
balance       find          mean          qr            sylv          
cd            finite        members       rand          symm          
ceil          fix           min           rank          system        
chol          floor         mini          rcond         tan           
class         format        mod           read          tanh          
clear         fprintf       nan           readb         tic           
clearall      fvscope       norm          readm         tmp_file      
close         getenv        num2str       real          toc           
compan        getline       ode           redit         trace         
complement    hess          ones          replot        tril          
conj          hilb          pause         reshape       triu          
cos           ifft          pclose        round         type          
cosh          imag          pend          save          union         
cross         inf           plalt         scalar        what          
cumprod       input         plaspect      schord        who           
cumsum        int           plaxis        schur         whos          
det           int2str       plaz          set           write         
diag          intersection  plfont        show          writeb        
diary         inv           plgrid        showpwin      writem        
diff          isempty       plgrid3       sign          xlabel        
disp          isinf         plhist        sin           ylabel        
dot           isnan         plimits       sinh          zeros         
eig           issymm        plot          size          zlabel   
>  mysin = function ( x ) { return sin (x); }
        <user-function>>  mycos = function ( x ) { return cos (x); }
        <user-function>> funclist = << cosine = mycos; sine = mysin ; v = 1:4; s = 2.43+3j>>   cosine       s            sine         v            
> what(funclist)
cosine  sine