How Can I solve this problem?

H = 3;

P = 100;

ls = atan(P/H);

fun = @(x) (2*(H/P)^2)*(x + (4/3)*x^3 + (17/15)*x^5 + (248/315)*x^7);

q = integral(fun,0,ls);

This is the error:

Error using ^ (line 51)

Incorrect dimensions for raising a matrix to a power. Check that the matrix is

square and the power is a scalar. To perform elementwise matrix powers, use

'.^'.

Error in distancia>@(x)(2.*(H/P)^2)*(x+(4/3)*x^3+(17/15)*x^5+(248/315)*x^7)

(line 4)

fun = @(x) (2.*(H/P)^2)*(x + (4/3)*x^3 + (17/15)*x^5 + (248/315)*x^7);

Error in integralCalc/iterateScalarValued (line 314)

fx = FUN(t);

Error in integralCalc/vadapt (line 132)

[q,errbnd] = iterateScalarValued(u,tinterval,pathlen);

Error in integralCalc (line 75)

[q,errbnd] = vadapt(@AtoBInvTransform,interval);

Error in integral (line 88)

Q = integralCalc(fun,a,b,opstruct);

Error in distancia (line 5)

q = integral(fun,0,ls);

Answer 1

[KSSV]

USe .^ instead of ^.

H = 3;
P = 100;
ls = atan(P/H);
fun = @(x) (2*(H/P)^2)*(x + (4/3)*x.^3 + (17/15)*x.^5 + (248/315)*x.^7);

q = integral(fun,0,ls);