# Highlight y-max

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Benjamin Nienhouse on 18 Nov 2020
So I'm wondering how I would highlight the y-max for my "Original Data" plot. Below is my code but I only want to highlight the y-max for the "Original data" plot.
Thanks,
Ben
h = input("Initial height (m): "); %Initial height
angle = input("Initial Angle of elavation: "); %Degrees
v = input("Initial velocity (m/s): "); %M/S
g=-9.81; %M/S^2
angles = 0:10:180;
heights = 0:10:100;
velocity = 10:10:100;
figure
[x_val,y_val] = Arc(g,h,angle,v);
plot(x_val,y_val);
hold on;
xlabel 'x (m)'
ylabel 'y (m)'
title 'Original Data'
figure
for a = angles
[x_val,y_val] = Arc(g,h,a,v);
plot(x_val,y_val);
hold on;
end
xlabel 'x (m)'
ylabel 'y (m)'
title 'Angles 0-180'
figure
for hi = heights
[x_val,y_val] = Arc(g,hi,angle,v);
plot(x_val,y_val);
hold on;
end
xlabel 'x (m)'
ylabel 'y (m)'
title 'Height'
figure
for vel = velocity
[x_val,y_val] = Arc(g,h,angle,vel);
plot(x_val,y_val);
hold on;
end
xlabel 'x (m)'
ylabel 'y (m)'
title 'Velocity'
function [x_val,y_val] = Arc(g,h,angle,v)
y = h;
t = 0;
x_val = [];
y_val = [];
while y >= 0
y=.5*g*t.^2+v*sind(angle)*t+h;
x=v*cosd(angle)*t;
t = t + 0.01;
x_val = [x_val,x];
y_val = [y_val,y];
end
end

#### 1 Comment

Benjamin Nienhouse on 20 Nov 2020
Thanks youuuu

Adam Danz on 18 Nov 2020
plot(x_val,y_val);
hold on;
[~,idx] = max(y_val);
plot(x_val(idx),y_val(idx),'r*')
text(x_val(idx),y_val(idx),'max','VerticalAlignment','Bottom','HorizontalAlignment','Left','FontSize',8)
xlabel 'x (m)'
ylabel 'y (m)'
title 'Original Data'

Benjamin Nienhouse on 19 Nov 2020
thanks bro
Benjamin Nienhouse on 19 Nov 2020
Hey, if you have the time, I'm wondering how I can "slow down" the "original data" graph so it plots it like a movie (you can see it plotting on the screen) instead of just instantly plotting it.
Adam Danz on 19 Nov 2020