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how to write in my x line pi instead of the actual number ?

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tomer polsky
tomer polsky on 10 Mar 2019
Answered: tomer polsky on 13 Mar 2019
hello I have 2 question .
1)first what is the diffrnce between the opretion * and .* ? as i undestand it the diffrnce is that you use * when multiplaying scalras and using .* when multiplaying vectors , am i right ?
2) the second question is that I wrote this code :
my question is how can I display my x line as function of pi (meaning 1pi ,2pi,3pi,4pi and so on ) ?
clc;clear all;close all
x=0:0.01:(6*pi)
beta=pi/7
alpha=pi/5
y_1=sin(x*alpha).*cos(x*beta)
y_2=cos(x*alpha).*sin(x*beta)
y_3=y_1+y_2
y_4=sin(x*alpha+x*beta)
figure(1)
plot(y_3)
figure(2)
plot(y_4)

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Accepted Answer

madhan ravi
madhan ravi on 10 Mar 2019
* for matrix mulitplication
doc mtimes
.* for element wise multiplication
doc times
xlim([0 6*pi])
xticks(0:pi:6*pi)
xticklabels((""+(0:6))+"\pi")

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