Openeclass Μαθηματικά σύμβολα

Πηγή: Τεχνολογικά- Προγραμματιστικά Νέα Τώρα – Tech News Now Gr

 

To toggle to the math mode, you must use the <m>…</m> tag. Apart from this tag, any html code can be used.
The math commands must be separated by a space character or surrounded by {}.
Examples :

  • <m>S(f)(t)=a_{0}+sum{n=1}{+infty}{a_{n} cos(n omega t)+b_{n} sin(n omega t)}</m>
  • <m>delim{lbrace}{matrix{3}{1}{{3x-5y+z=0} {sqrt{2}x-7y+8z=0} {x-8y+9z=0}}}{ }</m>
  • <m>delim{|}{{1/N} sum{n=1}{N}{gamma(u_n)} – 1/{2 pi} int{0}{2 pi}{gamma(t) dt}}{|} <= epsilon/3</m>
List of commands

Usual commands
x+y : x+y
x-y : x-y
x*y : x*y
x/y : x/y
x^y : x^y
x_y : x_y
x<>y : x<>y
x>y : x>y
x>=y : x>=y
x<y : x<y
x<=y : x<=y
Parenthesis
visible : (x)
invisible : {x}
Math space
a~b : a~b
Greek letters
alpha : alpha
beta : beta
gamma : gamma
delta : delta
epsilon : epsilon
varepsilon : varepsilon
zeta : zeta
eta : eta
theta : theta
vartheta : vartheta
iota : iota
kappa : kappa
lambda : lambda
mu : mu
nu : nu
xi : xi
pi : pi
varpi : varpi
rho : rho
varrho : varrho
sigma : sigma
varsigma : varsigma
tau : tau
upsilon : upsilon
phi : phi
varphi : varphi
chi : chi
psi : psi
omega : omega
Gamma : Gamma
Lambda : Lambda
Sigma : Sigma
Psi : Psi
Delta : Delta
Xi : Xi
Upsilon : Upsilon
Omega : Omega
Theta : Theta
Pi : Pi
Phi : Phi
Symbols
infty : infty
in : in
notin : notin
forall : forall
exists : exists
notexists : notexists
partial : partial
approx : approx
pm : pm
inter : inter
union : union
ortho : ortho
parallel : parallel
backslash : backslash
prime : prime
wedge : wedge
vert : vert
lbrace : {
rbrace : }
circ : circ
varnothing : varnothing
subset : subset
notsubset : notsubset
cdots : cdots
vdots : vdots
ddots : ddots

Arrows :
left : left
right : right
leftright : leftright
doubleleft : doubleleft
doubleright : doubleright
doubleleftright : doubleleftright
nearrow : nearrow
searrow : searrow
Sets
bbR : bbR
bbN : bbN
bbZ : bbZ
bbC : bbC
Roots
sqrt{a} : sqrt{a}
root{n}{a} : root{n}{a}
Limits
lim{a}{x} : lim{a}{x}
Big operators
int{a}{b}{x} : int{a}{b}{x}
doubleint{a}{b}{x} : doubleint{a}{b}{x}
tripleint{a}{b}{x} : tripleint{a}{b}{x}
oint{a}{b}{x} : oint{a}{b}{x}
sum{a}{b}{x} : sum{a}{b}{x}
prod{a}{b}{x} : prod{a}{b}{x}
bigcup{a}{b}{x} : bigcup{a}{b}{x}
bigcap{a}{b}{x} : bigcap{a}{b}{x}
Delimiters
delim{[}{x}{]} : delim{[}{x}{]}
delim{]}{x}{]} : delim{]}{x}{]}
delim{[}{x}{[} : delim{[}{x}{[}
delim{]}{x}{[} : delim{]}{x}{[}
delim{lbrace}{x}{rbrace} : delim{lbrace}{x}{rbrace}
delim{|}{x}{|} : delim{|}{x}{|}
delim{vert}{x}{vert} : delim{vert}{x}{vert}
Matrix
matrix{num of lines}{num of columns}{first_element … last_element}
Example :
matrix{2}{3}{a b c d e f g} : matrix{2}{3}{a b c d e f g}

Tabular
tabular{lines description}{columns description}{first_element … last_element}
lines description : sequence of 1 (draw the horizontal line) or 0 (don’t draw the horizontal line) – the length of the sequence=num of lines+1
columns description : sequence of 1 (draw the vertical line) or 0 (don’t draw the vertical line) – the length of the sequence=num of columns+1
Examples :
tabular{111}{1111}{a b c d e f g} : tabular{111}{1111}{a b c d e f g}

tabular{1001}{101}{1 2 3 4 5 6} : tabular{1001}{101}{1 2 3 4 5 6}

Constructions
vec{express} : vec{express}

{express}under{foo} : {express}under{foo}

{express}over{foo} : {express}over{foo}

overline{express} : overline{express}

underline{express} : underline{express}

hat{express} : hat{express}