floor function

14.05.2012, 00:13

juantheron

floor function

find value of $\begin{eqnarray*} x \end{eqnarray*}$ in $\begin{eqnarray*} x^2=4+\lfloor x \rfloor \end{eqnarray*}$

where $\begin{eqnarray*} \lfloor x \rfloor = \end{eqnarray*}$ floor function

14.05.2012, 06:44

Mystic

Auf diesen Beitrag antworten »

RE: floor function
Wow, this is a really tough problem... Big Laugh

Note that any solution x must be an integer and the righthandside of the equation is at most 4+x... Hence there are only a few values of x you must look into...

14.05.2012, 07:05

HAL 9000

Auf diesen Beitrag antworten »

Zitat:

Original von Mystic
Note that any solution x must be an integer

Only $\begin{eqnarray*} x^2 \end{eqnarray*}$ must be an integer.

14.05.2012, 08:25

Mystic

Auf diesen Beitrag antworten »

Zitat:

Original von HAL 9000

Zitat:

Original von Mystic
Note that any solution x must be an integer

Only $\begin{eqnarray*} x^2 \end{eqnarray*}$ must be an integer.

Sure, but does this make a difference here when thinking one step further? verwirrt

Edit: Ok, it does... Admittedly, I underestimated this problem a little bit... In fact, it is still easy, but not as easy as I thought it to be... unglücklich

Neue Frage »

Antworten »

floor function

Verwandte Themen