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solve matlab equation( 512*512*lo​g2(B))/2>=​=520000

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vaka sindhu
vaka sindhu 2014-4-2
评论： A Jenkins 2014-4-2
sir i am new to this matlab i want to satisfy the equation (512*512*log2(B))/>=520000 by keeping what value of B this equation will be satisfied answer is 16 .. i want how to do code for this equation in matlab by taking B values automatically to satisfy this equation

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回答（2 个）

A Jenkins
A Jenkins 2014-4-2
syms B
sym_b=solve(512*512*log2(B)/2==520000)
vpa(sym_b)
ans =
15.641263534925078400119749631703
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A Jenkins
A Jenkins 2014-4-2
In older versions of MATLAB, you can try rearranging:
sym_b=solve((512*512*log2(B))/2-520000)

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Star Strider
Star Strider 2014-4-2
The easiest way is to take the base-2 antilog of both sides. You get the answer directly:
B = 2^(2*520000/(512^2))
gives:
B =
15.6413e+000
  1 个评论
A Jenkins
A Jenkins 2014-4-2
That was going to be my next proposal too, but then we are just teaching math, and not "code for this equation in matlab by taking B values automatically to satisfy this equation".

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