Issues implementing quad function to a definite integral using element by element calculations

Hello, I am having issues with element by element math when trying to implement the quad function to calculate a definite integral. I keep receiving an error from the compiler, however, my other functions are working. Could someone please guide me in fixing my last function (y5)?

y2 = quad('(.5*x.^3)./(1+2*sqrt(x))', 2, 10)
y3 = quad('.5 + ((cos(1.2*x))./((x+2).^2))', 0, 9)
y4 = quad('(exp(x))./(x.^3)', 1, 8)
y5 = quad('((cos(x)). * (exp^(sqrt(x)))', 0, pi*4)

Answer 1

[Star Strider]

Instead of the single-quote syntax that is probably not permitted, use Anonymous Function syntax.

Example —

y2 = quad(@(x) (.5*x.^3)./(1+2*sqrt(x)), 2, 10)

y2 =
   190.2484

See the documentation on Anonymous Functions for more informaiton on them and how to use them.

Answer 2

[Torsten]

y5=quad('cos(x).*exp.^sqrt(x)',0,pi*4)

Best wishes

Torsten.