1+1

(Sqrt[5])

(25^(1/4))

N[(Sqrt[5])]

N[(Sqrt[5]),100]

(Sqrt[5.])

N[(Sqrt[5])]
(Sqrt[5])//N
N@(Sqrt[5])
N[(Sqrt[5]),10]
(Sqrt[5])//N[#,10]&
N[#,10]&@(Sqrt[5])

InverseLaplaceTransform

2 3

2 6

1 kyncl
1.kyncl

petr42Skupina8={1,2,6};

x=5;
ClearAll[x]
D[f[x],x]
Solve[(x^3)==1,x]

kyncl=0;

?@

Not[c]&&b||c&&b//Simplify

rce=(x^5)+x-17.==0;
Solve[rce,x]

?===

?=

?:=

ClearAll[f];
f[x_]=Integrate[(x^3)*Sin[(1/x)],x]
f[1.]

ClearAll[f];
f[x_]:=Integrate[(x^3)*Sin[(1/x)],x]
f[1.]

difrce=y''[x]+b*y'[x]+y[x]==0;
DSolve[difrce,y[x],x]

??Plot

Plot[{Sin[(x^2)],Cos[(x^2)]},{x,0,2(Sqrt[Pi])},PlotStyle->{{Red,Thick},{Blue,Thick}},AxesLabel->{"x","f1,f2"}]