exp function varios atb

Hello

I would like to ask for advice. I have defined an exp function with exponent U * c.

C varies from -1 to.0. (c = -1: 0.1: -0.1)

I can't draw 10 functions with a separate color and legend.

Would you please help me?

Script:

clear all
D=[0,0];       % D - dráha (m), z anglickeho displacement
FU=[0,0];
x=[0:1:150];
     for c = -1:0.1:-0.1 % rozne hodnoty parametra "c"
     
     % for c = -0.01 % rozne hodnoty parametra "c"

 % d=0;
fU=0;

 % fU = fU+exp(D*c);
 % FU = [FU fU];    

 % d = d+x;        % konkretna vzdialenost pre jednu rychlost v case
 % D = [D d];      % naplnenie postupnym znizovanim rychlosti

fU=exp(c*x);

FU = [FU fU];
D = [D x];


plot(D,FU,'b:')
axis([0,150,0,1])
grid on
grid minor
% legend(c,'Location','northeast')
hold on
    end

Answer 1

[Star Strider]

The loop is not necessary. Use vector-matrix multiplication instead.

Try this —

clear all
D=[0,0];       % D - dráha (m), z anglickeho displacement
FU=[0,0];
x=[0:1:150];
c = -1:0.1:-0.1; % rozne hodnoty parametra "c"
     
     % for c = -0.01 % rozne hodnoty parametra "c"

 % d=0;
fU=0;

 % fU = fU+exp(D*c);
 % FU = [FU fU];    

 % d = d+x;        % konkretna vzdialenost pre jednu rychlost v case
 % D = [D d];      % naplnenie postupnym znizovanim rychlosti

 FU = [FU fU];
 D = [D x];
fU=exp(c(:)*D);





plot(D,fU,'b:')
axis([0,150,0,1])
grid on
grid minor
legend(compose('c = %.1f',c), 'Location','northeast')

Make appropriate changes to get the desired result.

.

[Marek Drliciak]

Yes, thank you very much.

If you have time, please, is it possible to set the line color separately? (color spectrum).

[Star Strider]

As always, my pleasure!

To get separate line colours, do not specify them, and let MATLAB define them —

clear all
D=[0,0];       % D - dráha (m), z anglickeho displacement
FU=[0,0];
x=[0:1:150];
c = -1:0.1:-0.1; % rozne hodnoty parametra "c"
fU=0;
FU = [FU fU];
D = [D x];
fU=exp(c(:)*D);

plot(D,fU,':', 'LineWidth',2)
axis([0,150,0,1])
grid on
grid minor
xlim([0 60])                                                % Optional
legend(compose('c = %.1f',c), 'Location','northeast')

Setting the 'LineWidth' to something other than the default is optional. I did it here to make the lines more visible.

.

[Marek Drliciak]

Thank you very very much!!!!

[Star Strider]

As always, my pleasure!