I'm seeking advice on manipulating how Matlab is displaying numbers.

Question

David 2016-6-10

0
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https://ww2.mathworks.cn/matlabcentral/answers/289295-i-m-seeking-advice-on-manipulating-how-matlab-is-displaying-numbers

回答： Walter Roberson 2016-6-10

Hello.

While designing a circuit with a Boost/Inverting converter(TPS65131) I wanted to explore all the possible alternatives for the resistive feedback voltage divider, it's just like any adjustable regulator where R1 goes from Vout to the feedback pin(FB) and then R2 goes from FB to GND. R2 is recommended to be below 200kohm so I made a array with

R2 = (10000:10000:200000)';

I don't want to bore you with all the details but I generated another array with the values for R1 that would correspond with a 6V output(which is my target), but I would like to get the numbers to represent Ohm's and not having to look at them like this:

>> R1
R1 =
394641384995878
789282769991756
183924154987634
578565539983512
973206924979390
367848309975268
762489694971146
157131079967023
551772464962901
946413849958780
341055234954657
735696619950535
130338004946413
524979389942291
919620774938169
314262159934047
708903544929925
103544929925802
498186314921680
892827699917559

for example: 3.946413849958780 is 394641.3849958780Ohms It may seem as a little problem but I have a rather serious case of ADD and to convert those numbers in my head is an awful task to do. I have searched for solutions but found none, I would like to convert the numbers as follows, lets use 3.946413849958780 again, I would like Matlab to present that as 394641.38 which would be a number of Ohm's

Do you know how to accomplish that?

Regards