MATLAB: Table shows [1×1 sym]

error using sym/roundtabletoo many input argumentsvpasolve

Hello all,
I'm a beginner on MatLab, as you can see looking at my code. :/
I made a table results, but some columns show [1×1 sym] instead of the numeric value.
>> T
T =
  10×8 table
      x       r_radius        a         a_prime       beta        beta_i         psi       c_radius 
    ______    ________    _________    _________    _________    _________    _________    _________
         1    0.13333     [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]
    1.7222    0.22963     [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]
    2.4444    0.32593     [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]
    3.1667    0.42222     [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]
    3.8889    0.51852     [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]
    4.6111    0.61481     [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]
    5.3333    0.71111     [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]
    6.0556    0.80741     [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]
    6.7778     0.9037     [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]
       7.5          1     [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]    [1x1 sym]
When I check in the Command Window the matrices that don't show up in the table, it does return the numeric values.
a =
 
 0.31698729810778067661813841462353
  0.3262837777440087165440265301808
 0.32954671600852516464237599910151
  0.3309989121113711334050402800197
 0.33175810683123203783836260106585
 0.33220147460088597174212384813428
 0.33248184041064921067847020995443
 0.33267000685409559982051967533792
 0.33280224969353673811924615373881
 0.33289865996267927658115250868875
Although, there is a bunch of decimals, I thought it may be the source of the problem.
So I tried to use the round function, with 3 decimals for instead, but it shows the error:
>> round(a,3)
Error using sym/round
Too many input arguments.
I had found those values with the vpasolve function, which seems to give me a result full of decimals, maybe that's the source of the problem (Also, as a beginner, my code is very clinky and I have difficulties to resolve this system of equation at once, but I made it work…).
Would you have an idea to solve this please ? 🙂
%a
syms a1 a2 a3 a4 a5 a6 a7 a8 a9 a10
x=linspace(1,TSR,10)';
eqn1=(x(1)==(4*a1-1)*sqrt((1-a1)/(1-3*a1)));
eqn2=(x(2)==(4*a2-1)*sqrt((1-a2)/(1-3*a2)));
eqn3=(x(3)==(4*a3-1)*sqrt((1-a3)/(1-3*a3)));
eqn4=(x(4)==(4*a4-1)*sqrt((1-a4)/(1-3*a4)));
eqn5=(x(5)==(4*a5-1)*sqrt((1-a5)/(1-3*a5)));
eqn6=(x(6)==(4*a6-1)*sqrt((1-a6)/(1-3*a6)));
eqn7=(x(7)==(4*a7-1)*sqrt((1-a7)/(1-3*a7)));
eqn8=(x(8)==(4*a8-1)*sqrt((1-a8)/(1-3*a8)));
eqn9=(x(9)==(4*a9-1)*sqrt((1-a9)/(1-3*a9)));
eqn10=(x(10)==(4*a10-1)*sqrt((1-a10)/(1-3*a10)));
a1=vpasolve(eqn1,a1,[1/4 1/3]); %Finding a between 1/4 and 1/3
a2=vpasolve(eqn2,a2,[1/4 1/3]);
a3=vpasolve(eqn3,a3,[1/4 1/3]);
a4=vpasolve(eqn4,a4,[1/4 1/3]);
a5=vpasolve(eqn5,a5,[1/4 1/3]);
a6=vpasolve(eqn6,a6,[1/4 1/3]);
a7=vpasolve(eqn7,a7,[1/4 1/3]);
a8=vpasolve(eqn8,a8,[1/4 1/3]);
a9=vpasolve(eqn9,a9,[1/4 1/3]);
a10=vpasolve(eqn10,a10,[1/4 1/3]);
a=[a1;a2;a3;a4;a5;a6;a7;a8;a9;a10];

Best Answer

You need to convert the symbolic values to double for all the cases:
a1=double(vpasolve(eqn1,a1,[1/4 1/3]));
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