Symbol Reference Table
Symbol 
HTML Code 
∑ 
∑ 
ℝ 
ℝ 
≠ 
≠ 
∫ 
∫ 
∮ 
∮ 
√ 
√ 
≡ 
≡ 
∴ 
∴ 
≈ 
≈ 
⋅ 
⋅ 
√ 
√ 
∇ 
∇ 
∫ 
∫ 
∮ 
∮ 
→ 
→ 
∂ 
∂ 
∂ 
∂ 
… 
… 
$\frac{{d}^{2}x}{d{t}^{2}}$
${\int}_{{x}_{0}}^{{x}_{1}}$
Name  Symbol 
Value 
Avagadro's Number  N_{A} 
6.02×10^{23} 
Faraday  F 
6.02×10^{23}e 
Coulomb  C 
6.241×10^{18}e 
 

 

i,j,k are unit vectors
 () Parethesis are used for grouping and order of operations.
 [] Brackets are used to demarkate lists including ordered lists, vectors, and matrices.
 {} Braces are used