Help ploting logarithmic equation.

2014 12 4
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更新时间：2014 12 4
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Hi all,
I have a following equation:
m=-3;
k=5.00034535E+11;
S=0.5:0.5:1000;
log10(S)=-1/m*log10(N)+1/m*log10(k);
I need to plot log10(N) versus log10(S). However, I do not know how to deal with this. Can someone help me out?
Thank you in advance!

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Star Strider
Star Strider 2014-12-4
编辑：Star Strider 2014-12-4

0 个投票

A couple lines are necessary to rearrange your equation to give log10(N) as a funciton of log10(S). Not surprisingly, the result is a straight line:
m=-3;
k=5.00034535E+11;
S=0.5:0.5:1000;
log10N = log10(k) - m*log10(S);
figure(1)
plot(log10(S),log10N)
grid
xlabel('log_{10}(S)')
ylabel('log_{10}(N)')

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