Hello
it is correct to write:
or i need write ?
why ?
The question is :
if I need a substitution of f(x) in a formula :
I can directly replace f(x)
otherwise :
don't seem me elegant imho..
Thanks for the possible answers !
Hello
it is correct to write:
or i need write ?
why ?
The question is :
if I need a substitution of f(x) in a formula :
I can directly replace f(x)
otherwise :
don't seem me elegant imho..
Thanks for the possible answers !
As Mr. Fantastic indicatses, the second is far less confusing. In the first, you would have to recognize that you are using "x" to mean two different things- and that's never a good idea.
Would you say that,, when x= 1, ? That doesn't even make sense: there is no such thing as "d1"! If you write instead then you are recognizing that the "x" outside the integral and in the upper limit is NOT the same as the "x" inside the integral- and so you shouldn't use the same symbol!why ?
The question is :
if I need a substitution of f(x) in a formula :
I can directly replace f(x)
otherwise :
don't seem me elegant imho..
Thanks for the possible answers !
Far better to write so that when x= 1,