Miscellaneous Symbols
- This is a list of the most common miscellaneous symbols.
 
 
 | 
| Symbol |   Symbol   | Definition | Example | 
| \(a^n\) | 
- | 
power, an exponent | 
\(5^4 = 3125\) | 
|  % | 
- | 
percent, \(1\)% \(= 1/100 \) | 
\(5\)% \(\times 4 = 0.2 \) | 
| \(\Phi\) | 
Phi | 
golden ratio | 
\(1 : 1.6180339887...\) | 
| \(\pi\) | 
pi | 
Pi | 
\(\pi = 3.141592654... \) | 
| \(e\) | 
- | 
Euler's number constant | 
\(e = 2.718281828...\) | 
| \(\gamma\) | 
gamma | 
Euler-Mascheroni constant | 
\(\gamma = 0.5772156649...\) | 
| \(x!\) | 
- | 
fractional | 
\(5!=5\;x\;4\;x\;3\;x\;2\;x\;1=120 \) | 
| \(\int\) | 
int | 
integral, adding slices to find the whole | 
\(\int  2x \; dx\) | 
| \( \sum\) | 
sum | 
sigma, summation or sum of all | 
\( \sum_{n=4}^8 n = 4+5+6+7+8=30 \) | 
| \(\exists\) | 
exists | 
there exists | 
  | 
| \(\nexists\) | 
nexists | 
there does not exists | 
  | 
| \(\forall\) | 
forall | 
for all | 
  | 
| \(\infty\) | 
infty | 
infinity | 
  | 
| \(\propto\) | 
propto | 
porportional to | 
\(\frac{1}{4} \propto \frac{2}{8}\) | 
| \(i\) | 
- | 
imaginary number | 
\(i=\sqrt{-1}\) |