professional matlabers plz solve this one program

[bavamurali]

i=90030021002145212;
b=90030021003000000;
while(i<b)
fprintf('%f\n',i);
i=i+1;
end

I want to increment i by one and it is not going correctly solve this one

 

[hamidrezakarami]

The answer is simple. Digits in matlab or the other software are not real !
for more information you can see the papers about round-off error.
In fact round-off error fail you problem.

Best,

 

[hamidrezakarami]

you can test a simple code for more information,
ones(10000,1)*0.2;
sum(ans)

real answer = 2000
MATLAB answer = 2.000000000000318e+003;

 

[ahmadkerl]

Try i and b with number less than 2^55 should be ok.
for your case, the minimum increment may be 8.

 

[favsars]

This topic is interesting for me. Especially, the example of hamidrezakarami is very interesting. Cause of this error may be round-off error, the next question is that how can this problem be fixed? Can i solve tihs problem by increase sensivity or accuracy any setting?
ahmadkerl, you said that 'for your case, the minimum increment may be 8'. What is the rule for determining this?
Thanks everyone.

 

[tamoor]

KINDLY HELP

i need to graph fig 1, in link below

https://users.auth.gr/geokarag/pdf/Av_SNR_triple.pdf

please matlab experts help, i just need to highlight average value may increase as daual, triple and quade used in matrix.

thank you

Tam

 

[philcorb]

if you use
i = uint64(90030021002145212);
b = uint64(90030021003000000);

you'll might get the behaviour you expect