How to evaluate a function over a range of inputs
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This is probably really easy but i'm new to Matlab and can't figure out the syntax.
Example: F = ((1-n/(1+n))^2 n = [0:15]
Want to evaluate the function (F) for a given (n) is all... How do you set this up in ML?
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回答 (2 件)
Steven Lord
2018 年 8 月 3 日
You will need to use the element-wise or array versions of the division and power operators. See this documentation page for an explanation of the different between the element-wise / array operators and the matrix operators.
As a simple example of the difference, using the times array operator ".*" and the mtimes matrix operator "*":
A = [1 2 3; 4 5 6; 7 8 9]
B = [1 4 7; 2 5 8; 3 6 9]
elementwise = A.*B
matrix = A*B
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Fangjun Jiang
2018 年 8 月 3 日
編集済み: Fangjun Jiang
2018 年 8 月 3 日
The OP is probably asking for this
>> F=@(x) ((1-x/(1+x)))^2
F =
function_handle with value:
@(x)((1-x/(1+x)))^2
>> F(15)
ans =
0.0039
More common way is to write the following and save it as F.m then you can call and run F(1)
function out=F(x)
out=((1-x/(1+x)))^2;
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