matlab words no help needed

조회 수: 1(최근 30일)
Tyler Daines
Tyler Daines 2021년 5월 11일
편집: Rena Berman 2021년 6월 29일
I need to plot the sum of 2 sine curves. I can successfully plot (x,y1) and plot(x,y2), they are smooth curves, however when i try to plot(x,y) where y = y1+y2 the curve comes out like this? how do i fix this i dont know what i am doing wrong? Thanks
  댓글 수: 3
Rena Berman
Rena Berman 2021년 6월 29일

(Answers Dev) Restored edit

댓글을 달려면 로그인하십시오.

답변(2개)

DGM
DGM 2021년 5월 11일
What you're looking at isn't meaningful. It's all just rounding error. You're essentially doing this:
y = sin(x) - sin(x);
I'm guessing there's some phase component that's not defined right yet, but I can't really guess at what you need it to be.
f = 2;
A = 1;
v = 1;
L = 1;
l = v/f;
B = (2*pi)/l;
w = 2*pi*f;
t = 0;
x = 0:0.0001:L;
z1 = A*sin(B*x - w*t);
z2 = A*sin(B*(L-x) - w*t);
y = z1+z2;
plot(x,z2); hold on
plot(x,z1);
For the future, please just paste your code using the code formatting tools. I had to retype all that and deal with the sub-pixel ambiguity differentiating the character '1' and 'l'.
  댓글 수: 2
DGM
DGM 2021년 5월 11일
No worries. It was short enough.

댓글을 달려면 로그인하십시오.


RAHUL MAURYA
RAHUL MAURYA 2021년 5월 12일
clear all;
clc;
f = 2;
A = 1;
v = 1;
L = 1*(180/(pi));
l = v/f;
B = ((2*pi)/l)*(180/pi);
w = 2*pi*f;
t = 0;
x=0:0.0001:L;
z1 = (A*sind(B*x - w*t));
z2 = A*sind(B*(L-x) - w*t);
y=(z1+z2);
subplot(3,1,1);
plot(x,z1)
title('X,Z1')
axis([0 10 -1 1])
subplot(3,1,2);
plot(x,z2)
title('X,Z2')
axis([0 10 -1 1])
subplot(3,1,3);
plot(x,y)
title('X,Z1+Z2')
axis([0 10 -2 2])
Convert B and L in radian to degree.
  댓글 수: 1
RAHUL MAURYA
RAHUL MAURYA 2021년 5월 12일
Convert B and L in degree from Radian

댓글을 달려면 로그인하십시오.

범주

Find more on Line Plots in Help Center and File Exchange

Community Treasure Hunt

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

Start Hunting!

Translated by