How to shorten the amount of decimals?

I keep getting really long numerical values as output:

An =

0.024234995896557227359496464702679*alpha

0.15943782393832228295849338860996*alpha

-0.12536421301907562828842055676579*alpha

-0.03553313448766475646513348990721*alpha

-0.13243736773001789371670675334921*alpha

-1.1264101534225156844164497805098*alpha

0.032972016135334102699585911872833*alpha

0.10090249826183501633095025194958*alpha

0.094800519200094255394106279895626*alpha

-0.031355837620080097288391753550103*alpha

How can i reduce this to only a couple decimal places?

Entire code for reference:

clc

clear

N = 19;

AR = 6;

n =1:2:N;

b = 6;

Vinf = 1;

c = 1;

deltay = b./(N+1);

y0n = -(b./2)+n.*deltay;

syms alpha

A = sym('A', [1, N]);

A = A(1:2:end);

Pi = sym(pi);

theta = (linspace((Pi/6),(Pi/2),numel(n)).');

S1 = sum(A.*sin(n.*(theta)));

S2 = sum(n.*A.*(sin(n.*(theta))./sin((theta))));

eq1 = (2*AR/pi)*S1+S2 == alpha;

[A,b] = equationsToMatrix(eq1, A);

x = linsolve (A,b);

An = vpa(x)

Answer 1

[Star Strider]

Use the digits function.

[Steven Lord]

You can instead call vpa with two inputs if you don't want to affect the number of digits for future calls.