# How to draw sinewave with Scalling

2 views (last 30 days)
Med Future on 27 Feb 2022
Answered: Scott MacKenzie on 27 Feb 2022
Hello everyone i hope you are doing well. i have the code below which create the sinewave between 240 and 340
But i want to draw the sinewave between 750 and 850 How can i create that . the array contain 10000 value for sinewave maxV=100;
minV=5
f = 30;
fs = 1e4; % samples per second
t=0:0.1:1000;
x = sin(2*3.14*f*t);
M=[maxV-minV]/2; % slope --> [maxV-minV]/[1-(-1)]
B=1+minV; % intercept
z=M*(x+B); % scale % intercept
% scale
plot(t(:,1:1000),z(:,1:1000))

Scott MacKenzie on 27 Feb 2022
Just shift the values in z up by constant...
maxV=100;
minV=5;
f = 30;
fs = 1e4; % samples per second
t=0:0.1:1000;
x = sin(2*3.14*f*t);
M=[maxV-minV]/2; % slope --> [maxV-minV]/[1-(-1)]
B=1+minV; % intercept
z=M*(x+B); % scale % intercept
z = z + 510; % scale
plot(t(:,1:1000),z(:,1:1000)) R2021b

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