How can I find the area above the parabolic curve for this particular case?

2 views (last 30 days)
Hi, I am new to MATLAB (so pardon me for a rather elementary question). I need to find the area above the curve (z=0.0012*v^1.5) by integration as shown in the figure.
I tried using this:
Area = sum(v(v>0))
I am not sure if this is giving me the area correctly. What else can I try using Matlab?

Accepted Answer

sloppydisk
sloppydisk on 25 May 2018
An elegant way to do this is via function handles:
x = linspace(0, 11, 100);
y = @(x) .0012*x.^1.5;
yforArea = @(q) max(y(x)) - y(q);
area = integral(yforArea, 0, max(x))
Or just via trapezoidal integration directly:
x = linspace(0, 11, 100);
y = .0012*x.^1.5;
z = trapz(x, max(y)-y)

More Answers (0)

Categories

Find more on Programming in Help Center and File Exchange

Products

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!