how to debugg the error : size input must be integers

2 次查看（过去 30 天）
Cassandra Soliman
Cassandra Soliman 2020-5-29
回答： Tommy 2020-5-29
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
  2 个评论
Image Analyst
Image Analyst 2020-5-29
Enough already. Can you stop posting this over and over again?
Cassandra Soliman
Cassandra Soliman 2020-5-29
I apologise im just trying to debugg u = ones(nx,ny); i am unsure why i am getting an error

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Tommy
Tommy 2020-5-29
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?

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Motion Modeling and Coordinate Systems 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by