MATLAB: How do at write the equation

matlab function elementary vector

How do I make this equation work for a vector? (the vector x=[-1:0.1:1])

f = x 2 sin(πx)

I've tried the following:

f=x.^2*sin(x.*pi)

f=x.^2*sin(x*pi)

It doesn't work.

Best Answer

f = x.^2.*sin(x*pi)

Related Solutions

MATLAB: Why it display Undefined variable for x when i hit run?(for the last line)

f=@sin;
x1=0;
x2=pi/3;
x3=2*pi/3;
x4=pi;
n=4; 
a1=f(x1);
a2=f(x2);
a3=f(x3);
a4=f(x4);
a=[a1,a2,a3,a4]
h = zeros(1,n-1); %preallocation for speed and efficiency
for i=1:n-1 
    h(i)=a(i+1)-a(i); 
end

MATLAB: Integral vector .* sin(pi*x) error matrix dimensions must agree.

When in doubt, and if you do not intend matrix operations, vectorise every operation to do element-wise operations. Specifying 'ArrayValued',true in the integral call is also necessary here.

Try this:

fm = fm + exp(lam^2*T).*sin(lam*x).*(2*integral(f,0,L, 'ArrayValued',1));

Best Answer

Related Solutions

MATLAB: Why it display Undefined variable for x when i hit run?(for the last line)

MATLAB: Integral vector .* sin(pi*x) error matrix dimensions must agree.

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