Difference between revisions of "Relationship between q-derivative and derivative"

From specialfunctionswiki
Jump to: navigation, search
 
(One intermediate revision by the same user not shown)
Line 1: Line 1:
<div class="toccolours mw-collapsible mw-collapsed">
+
==Theorem==
<strong>[[Relationship between q-derivative and derivative|Theorem]]:</strong> The following formula holds:
+
The following formula holds:
$$\displaystyle\lim_{q \rightarrow 1} D_q f(x) = f'(x),$$
+
$$\displaystyle\lim_{q \rightarrow 1^+} D_q f(x) = f'(x),$$
 
where $D_q$ denotes the [[q-derivative|$q$-derivative]] and $f'(x)$ denotes the [[derivative]] of $f$.  
 
where $D_q$ denotes the [[q-derivative|$q$-derivative]] and $f'(x)$ denotes the [[derivative]] of $f$.  
<div class="mw-collapsible-content">
+
 
<strong>Proof:
+
==Proof==
</div>
+
 
</div>
+
==References==
 +
 
 +
[[Category:Theorem]]
 +
[[Category:Unproven]]

Latest revision as of 01:05, 25 June 2016

Theorem

The following formula holds: $$\displaystyle\lim_{q \rightarrow 1^+} D_q f(x) = f'(x),$$ where $D_q$ denotes the $q$-derivative and $f'(x)$ denotes the derivative of $f$.

Proof

References