MATLAB: Create a function and plot it

for loopfunctionplot

Hello I have the following function:
f(x) = 1 + a/ 2.5 + x
a= some value
I would like to plot that function. I try to do it with a loop but it takes a lot of time when my x interval is too large.
for x = 1:1000
    a= 500
    fx = 1 + (a/ (2.5 + x));
    plot(x,fx,'-*', 'color','blue');
    hold on;    
end
Is there other way to plot the function maybe defining it with the matlab function command?

Best Answer

There are two ways to do this.
[Solution 1]
a = 500;
x = 1:1000;
fx = 1 + (a ./ (2.5 + x));
figure
plot(x,fx)
[Solution 2]
a = 500;
fx = @(x) 1 + (a ./ (2.5 + x));
figure
fplot(fx,[1 1000])
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