how to debugg the error : size input must be integers

function u = Section1_4

% This function code is to plot u(x,y) = u1(x,y)+u2(x,y)

% Description: This file is specifically plotting the centre of the domain

% The analytical solution for the Laplace Equation for section 1.4

%Input parameters

% C0 = u1(x,y)

% C2 = u2(x,y)

% The following is the spatial parameters

L = 3/2; %length of the x-dimension (we only want the centre domain)

H = 1/2; % length of the y-dimension

T_1 = -5; % temperature profile

T_2 = -10; % temperature profile

nx = 1.5; % Number of grid points x-direction

ny = 0.5; % Number of grid points in the y direction

x = linspace(0,L,nx);

y = linspace(0,H,ny);

nfs = 50;

n = 1;

k = ((n*pi)/(L));

u =ones(nx,ny); %% line were the error is

% Analytical solution

for i=1:nx

for j=1:ny

for m = 1: nfs

upper_side = ((16*T_1/((n^3)*(pi)^3)))*(((1-cos(n*pi))/sinh(k*H)))*(sinh(k*y(j)))*(sin(k*x(j)));

lower_side = ((16*T_2/((n^3)*(pi)^3)))*(((1-cos(n*pi))/sinh(-k*H))).*(sinh(k*y-k*H)).*(sin(k*x(j)));

% full solution

u(i,j) = u(i,j) + upper_side + lower_side;

end

end

end

contourf(x,y,u');

pcolor(x,y,u');

shading interp;

title('Temperature Value at the Centre of Domain');

xlabel('x');

ylabel('y');

colorbar;

surf(x,y,u');

end

[Image Analyst]

Enough already. Can you stop posting this over and over again?

[Cassandra Soliman]

I apologise im just trying to debugg u = ones(nx,ny); i am unsure why i am getting an error

Answer 1

[Tommy]

nx = 1.5; % Number of grid points x-direction 
ny = 0.5; % Number of grid points in the y direction 

"size input must be integers"

nx and ny must be integers but aren't. What does it mean to have 0.5 grid points in the y direction?