How to replace the string using strrep?
显示 更早的评论
say I have a str = 'f(x) = 2*x^3' or 'fun(var_name) = 2*var_name^3'
and I have a value of 3(val = 3)
how do I make sure that the strrep will replace the x value or var_name with the value that I want?
采纳的回答
Star Strider
2015-2-18
I am not certain what you want to do, but if you want to make functions out of your expressions, use the Anonymous Functions syntax:
f = @(x) 2*x.^3;
then call them as you would any other function:
var_name = 5;
result = f(var_name)
produces:
result =
250
2 个评论
Kratos
2015-2-18
Star Strider
2015-2-18
With ‘fun’ defined as:
fun = @(x) 2*x.^3;
the result for each of those would be:
result = fun(var_name)
result = fun(pos)
result = fun(car)
The function takes care of replacing the value appropriately. To understand how functions work, please see the documentation for ‘Anonymous Functions’ that I provided the hyperlink to in my Answer.
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