Add Headers to Matrix
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Bailey Smith
am 5 Jun. 2018
Bearbeitet: Stephen23
am 6 Jun. 2018
I made a multiplication table and want to add headers to it. This is my code:
clear; clc; n = input('Select a value for n: '); m = zeros(n); for column = 1:1:n for row = 1:1:n num = row*column; m(column,row) = num; end end disp(m)
I would like it to have a header over the top and down the left side like a real multiplication chart. How would I go about doing this? For example, say the user enters 3. I want it to look like:
1 2 3 1 1 2 3 2 2 4 6 3 3 6 9
Thank you so much in advance!
0 Kommentare
Akzeptierte Antwort
KSSV
am 6 Jun. 2018
n = input('Select a value for n: ');
m = zeros(n);
for column = 1:1:n
for row = 1:1:n
num = row*column;
m(column,row) = num;
end
end
iwant = zeros(n+1,n+1) ;
iwant(2:end,1) = 1:n ;
iwant(1,2:end) = 1:n ;
iwant(2:end,2:end) = m ;
iwant = num2str(iwant) ;
iwant(1,1) = 'X' ;
disp(iwant)
0 Kommentare
Weitere Antworten (1)
Stephen23
am 6 Jun. 2018
Bearbeitet: Stephen23
am 6 Jun. 2018
No loops are required, just use MATLAB's ability to work with complete matrices:
n = str2double(input('Select a value for n: ','s')); % safer to use 's' option.
v = 1:n;
m = [v;v(:)*v];
f = repmat('%5d',1,n);
fprintf(['x |',f,'\n'],v)
fprintf('--|%s\n',repmat('-',1,n*5))
fprintf(['%-2d|',f,'\n'],m)
Which displays this in the command window:
Select a value for n: 6
x | 1 2 3 4 5 6
--|------------------------------
1 | 1 2 3 4 5 6
2 | 2 4 6 8 10 12
3 | 3 6 9 12 15 18
4 | 4 8 12 16 20 24
5 | 5 10 15 20 25 30
6 | 6 12 18 24 30 36
If you want to put headers in a variable stored in MATLAB memory, then I highly recommend using tables:
0 Kommentare
Siehe auch
Kategorien
Mehr zu Startup and Shutdown finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!