1+1

a=3;
b=2;
a+b

Sin[π]
π//Sin
Sin@π

Sin[5]

Cos[((7π)/8)]

(Sqrt[8])

N[(Sqrt[8])]

N[(Sqrt[8]),40]

(Sqrt[8.])

vyr=(x^2)*Sin[(1/(Tan[4-((Sqrt[x])+1)]))]

TreeForm[vyr];
FullForm[vyr]

Plot[vyr,{x,0,6Pi}]

LaplaceTransform[(t^3)Sin[10t+0.4],t,p]

Plot[(x^2),{x,0,6Pi}];

listik={1,{"osel","volek"},{{-1,3}}}

listik[[-1,-1,-1]]

listik[[0]]

TreeForm[listik];

listik[[2]][[1]]
listik[[2,1]]

x=kyncl je vul

12opice

ClearAll[x]

x*2

2x

opice12

Blue

Plot[{Cos[x],Sin[x]},{x,0,6Pi},AxesLabel->{"x","sin(x) , cos(x)"},PlotStyle->{{Red,Thick,Dashing[{0.01,0.02,0.03}]},{RGBColor[0,0,1],Dashed,Thickness[0.01]}}]

Plot[Tan[x],{x,0,6Pi},PlotRange->All]

Plot[Tan[x],{x,0,6Pi},PlotRange->{{0,5},{-10,10}}]

Plot[Tan[x],{x,0,6Pi},PlotRange->{Automatic,{-10,10}}]

?_

ClearAll[f];
f[0]:=1;
f[x:_]:=(x^2);

ClearAll[f];
f[0]:=1;
f[x_]:=(x^2);
f[x_,y_]:=(x^y);
f[x_,2]:=3+x;
f[{x_,y_}]:={x-y};
f[{x_,y_Integer}]:="dej pokoj!!!";

f[{Pi,2}]

?:=

?=

ClearAll[f];
f[x_]:=Integrate[Sin[x],x]
f[4]
?f

ClearAll[f];
f[x_]=Integrate[Sin[x],x]
f[4]
?f