how do i present the variable W with the 2 digits after the decimal point?

2015 5 14
1 个回答
更新时间：2015 5 14
14 次查看（30 天）

0 个投票

i=0.15; v=24;
c=25*10^-6;
R=140; L=260*10^-3;
syms W
eqn = i==v/sqrt((R^2)+(W*L-1/W*c)^2);
W = solve(eqn,W);
w= round(W)

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回答（1 个）

Purushottama Rao
Purushottama Rao 2015-5-14
编辑：Purushottama Rao 2015-5-14

0 个投票

format bank
w

5 个评论
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Purushottama Rao
Purushottama Rao 2015-5-14
BEFORE DISPLAYING YOUR RESULT, use format bank command
Idan Nagar
Idan Nagar 2015-5-14
didnt work for me matlab returns W =
(500*3^(1/2)*5^(1/2))/13 + 6000000026^(1/2)/520
(500*3^(1/2)*5^(1/2))/13 - 6000000026^(1/2)/520
6000000026^(1/2)/520 - (500*3^(1/2)*5^(1/2))/13
- (500*3^(1/2)*5^(1/2))/13 - 6000000026^(1/2)/520
what shell i do?
Purushottama Rao
Purushottama Rao 2015-5-14
编辑：Purushottama Rao 2015-5-14
You may use as well
sprintf('%.2f', W);
Walter Roberson
Walter Roberson 2015-5-14
double() the symbolic number to get floating point.

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