How to print symbolic representation of [4^1+1 4^2+1 4^3+1] rather than the actual numerical output?

1 view (last 30 days)
hmhuang on 17 May 2020
Commented: Ameer Hamza on 18 May 2020
I would like to add a line of texts like "points = 4^1+1 4^2+1 4^3+1" instead of "points = 5 17 65" to chart.
The current content of my code to print "points = 5 17 65" is as following:
for i = 1:3
n = 4^i + 1;
%{
do something with numeric values of n and i (i.e., i = 1, 2, 3)
%}
% Storing "number of points" in vector 'point'
point(i) = n;
end
disp(['Grid points = ' sprintf('%d ', point)])
Note that I do need the numerical values of n and i (i.e., i = 1, 2, 3 for n = 4^i + 1) to do some computations.
I found
syms i
may be appropriate for my intended use, but cannot figure out how to exactly apply it into my for-loop.
Thanks!

Ameer Hamza on 17 May 2020
Edited: Ameer Hamza on 17 May 2020
point = 1:3;
disp(['Grid points = ' sprintf('4^%d ', point)])
Result
Grid points = 4^1 4^2 4^3
Ameer Hamza on 18 May 2020
The syntax is not correct, according to MATLAB. But I didn't understand what you are trying to do here. Can you explain with an image what where you want to write the text()?

R2019b

Community Treasure Hunt

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

Start Hunting!