1+1

a=8

4 + 8

a+4

a=8;
b=7;
c=9;
a+b+c

pom=Integrate[((Sin[x])/x),{x,t-1,t}];
Plot[pom,{t,0,5}]

1kyncl

(Sqrt[5])

(25^(1/4))

(Sqrt[5.])

N[Pi]
Pi//N
N@Pi

InverseLaplaceTransform

?:=

ClearAll[f];
f[x_]:=Integrate[(x^17)*Sin[(x^2)],x]
f[1]

a=2
b:=3

b

a==b

4*5
4 5

4 5

x y

xy

DSolve[(1+(x^2))y''[x]+x*y'[x]+(4-(x^2))*y[x]==0,y[x],x]

N[Pi]
N[Pi,40]

??Plot

Plot[{Exp[-(x^2)],ArcTan[x]},{x,-3,3},PlotStyle->{{Thick,Yellow},{Thick,LightPink}},AxesLabel->{"x","(e^(-(x^2)))"}]

Exp[-(x^2)]+ArcTan[x]//SpokenString