Calculate sum of series using for

I need help to calculate the sum of this example using only for.

Thanks for the help!

[James Tursa]

What have you done so far? What specific problems are you having with your code? This is a very simple for-loop. Do you know how to write a for-loop?

[Angel Hiram Torres Mota]

In new to matlab and this is one of my first assignments. Im just confused at the i = m and also confused at what are my inputs. If you can recommend a book of webpage where I can learn more of this, I would also appreciate it.

Answer 1

[James Tursa]

Here is an outline to get you started:

a = something; % you put a value here
m = something; % you put a value here
x = something; % you put a value here
y = 0; % the starting y value
for i=1:m  % the for-loop indexing
    % you put code here to add something to y
end % the end of the for-loop

See the Getting Started tutorials here:

https://www.mathworks.com/support/learn-with-matlab-tutorials.html

[Angel Hiram Torres Mota]

Thanks!

[Angel Hiram Torres Mota]

a = input("Value of a: ");

m = input("Value of m: ");

x = input("Value of x: ");

y = 0;

for i=1:m

y = ((a)*(x^i));

end

disp(y)

Like this I suppose?

I apologize again, as I said I'm new to this.

[James Tursa]

That's a good start at getting the values in. But in the for-loop, you want to be adding terms into y. The way you have it coded now, you are simply replacing the value of y with a new term. You need to correct the code inside the for-loop.