Question

1:

A) Given the following vectorized code:
>>x=[1:10];
>>f=x.^2+2;
Rewrite this code using a for loop that defines each element of f one at a time. Make sure to preallocate memory to f before filling each spot.

B)

See the following code. Rewrite the code in one line using the find function and a For loop. then write it again using a while loop
x=[-1 3 7 2 4 0];
v=[];
for i=1:length(x)
if x(i)<=2
v=[v, x(i)];
end
end

please help using MATLAB

Answer 1

Ans

code:-

%A)

f=[];

for x=1:10

f=[f,x^2+2];

end

%B)

x=[-1,3,7,2,4,0];

v=[];

%in single line using find

v=x(find(x<=2,length(x)));

%using while

i=1;

while i<=length(x)

if x(i)<=2

v=[v,x(i)];

end

end

If any doubt ask in the comments.