To approximate an expression with exact values

2014 4 18
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更新时间：2014 4 18
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1) 1.0/3*exp(1)*sin(2)
ans =
0.8239
BUT when I used command,
2) float(1.0/3*exp(1)*sin(2))
Error using float (line 46)
The input argument to float was not a supported type. The only recognized strings are 'single'
and 'double'. The input type was 'double'.
How can I get an expression with exact values?

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 采纳的回答

Walter Roberson
Walter Roberson 2014-4-18

1 个投票

You do not need the float(). You need
format long g
1.0/3*exp(1)*sin(2)

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