exjobb/scilab/pulses/pulse3a.sce

xdel(winsid())
clear;

t = [0:0.01:10];
a = 1;
b = 7;
k = 1;

magnitude = 100;
offset = 20;

y = k*(exp(-a*t) - exp(-b*t) );

// Normalisera till 1 och multiplicera med magnituden
y = y/max(y)*magnitude;

ymax = max(y)*ones(1,length(y));

// Create repetetive puses
ylong=[];
t=[];
for i = [1:13]
    if(modulo(i, 7) == 0 || modulo(i, 7) == 1) // Skip two pulses
        ylong = [ylong zeros(1,length(y))];
    else // The rest are pulses
        ylong = [ylong y];
    end
end

// Add offset voltage and create t axis that fits all pulses
ylong = ylong*-1;
ylong = ylong + offset;
t = [1:length(ylong)];

// Plot vertical lines
xpts = [1 1];
ypts = [0.3*magnitude 0]+offset;
plot(xpts*1000, ypts, '-');
plot(xpts*5000, ypts, '-');
plot(xpts*8000, ypts, '-');
ypts = [0.15*magnitude 0]+offset;
plot(xpts*2000, ypts, '-');
//plot(xpts*8.96, ypts, '--');

// Plot horizontal lines
plot(ones(1,length(ylong))*min(ylong), '--blue'); // min
plot(ones(1,length(ylong))*max(ylong), '--blue'); // Max
plot(ones(1,length(ylong))*0, '-black'); // Zero

plot(t,ylong, 'black'); // Självaste pulsen
p = get("hdl");
p = p.children;
p.thickness = 3;

// titletxt = ['$y = k(e^{-\alpha t} - e^{-\beta t})$' ; strcat(['$k=', string(k), ', \alpha=', string(a), ', \beta=', string(b), '$']) ];

titletxt = '$y = k(e^{-\alpha t} - e^{-\beta t})$';
//title("Consecutive pulses", 'fontsize', 8);
//xlabel('t (s)', 'fontsize', 7);
//ylabel('U (V)', 'fontsize', 7, 'rotation', 0);

a = get("current_axes");
a.axes_visible(1) = "off"; // Turn off X-axxis
a.data_bounds = [min(t), -magnitude; max(t),offset*3];
a.box = "off";

f=get("current_figure")
f.figure_size=f.figure_size*1.3  // Råkade bli lagom storlek