Try this:
clc; % Clear the command window.
close all; % Close all figures (except those of imtool.)
clear; % Erase all existing variables. Or clearvars if you want.
workspace; % Make sure the workspace panel is showing.
format long g;
format compact;
fontSize = 15;
M=0:0.2:4;
Ta=1;
values = 220 : 20 : 300;
numCurves = length(values)
plotColors = jet(length(values));
lineStyles = {'-.', '-x', '-s', '-+', '-o'};
for k = 1 : numCurves
thisValue = values(k);
T = ((1 + ((1.4 - 1) / 2) * 0.85 .* M .^ 2) * (Ta * thisValue));
thisColor = plotColors(k, :);
thisStyle = lineStyles{k};
plot(M, T, thisStyle, 'Color', thisColor, 'LineWidth', 2, 'MarkerSize', 25);
ylim([250,700])
hold on;
grid on;
end
xlabel('Machov broj - {\it Ma}', 'FontSize', fontSize)
ylabel('Temperatura oplate - {\it T} (K)', 'FontSize', fontSize)
legend('T_o=220 K','T_o=240 K','T_o=260 K','T_o=280 K','T_o=300 K','location','best')
hold off
g = gcf;
g.WindowState = 'maximized'
