Practica de ciencies

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  • Publicado : 27 de enero de 2012
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f1[x_]=1
f2[x_]=x+1
f[x_]=If[x1,f1[x],f2[x]]
Plot[f[x],{x,-10,10}]
1
1+x
If[x1,f1[x],f2[x]]

f1[x_]=3
f2[x_]=x-1f[x_]=If[x<2,f1[x],f2[x]]
Plot[f[x],{x,-10,10}]
3
-1+x
If[x<2,f1[x],f2[x]]

f1[x_]=1-x
f2[x_]=5
f[x_]=If[x<-2,f1[x],f2[x]]
Plot[f[x],{x,-10,10}]
1-x
5If[x<-2,f1[x],f2[x]]

f1[x_]=x
f2[x_]=x+1
f[x_]=If[x0,f1[x],f2[x]]
Plot[f[x],{x,-10,10}]
x
1+x
If[x0,f1[x],f2[x]]

f1[x_]=2x+3
f2[x_]=3-xf[x_]=If[x<-1,f1[x],f2[x]]
Plot[f[x],{x,-10,10}]
3+2 x
3-x
If[x<-1,f1[x],f2[x]]

f1[x_]=-1
f2[x_]=1
f3[x_]=-1
f[x_]=Which[x<-1,f1[x],-1x1,f2[x],x>1,f3[x]]Plot[f[x],{x,-10,10}]
-1
1
-1
Which[x<-1,f1[x],-1x1,f2[x],x>1,f3[x]]

f1[x_]=-1
f2[x_]=x
f3[x_]=1
f[x_]=Which[x<-1,f1[x],-1x1,f2[x],x>1,f3[x]]Plot[f[x],{x,-10,10}]
-1
x
1
Which[x<-1,f1[x],-1x1,f2[x],x>1,f3[x]]

f1[x_]=2
f2[x_]=x^2
f[x_]=If[x-1,f1[x],f2[x]]
Plot[f[x],{x,-10,10}]
2
x2If[x-1,f1[x],f2[x]]

f1[x_]=1-x^2
f2[x_]=x
f[x_]=If[x2,f1[x],f2[x]]
Plot[f[x],{x,-10,15}]
1-x2
x
If[x2,f1[x],f2[x]]

f1[x_]=0
f2[x_]=3
f[x_]=If[x2,f1[x],f2[x]]Plot[f[x],{x,-9,15}]
0
3
If[x2,f1[x],f2[x]]

f1[x_]=x^2
f2[x_]=1
f[x_]=If[x1,f1[x],f2[x]]
Plot[f[x],{x,-10,15}]
x2
1
If[x1,f1[x],f2[x]]

f1[x_]=4f2[x_]=x^2
f3[x_]=-x+6
f[x_]=Which[x<-2,f1[x],-2x2,f2[x],x>2,f3[x]]
Plot[f[x],{x,-10,10}]
4
x2
6-x
Which[x<-2,f1[x],-2x2,f2[x],x>2,f3[x]]

f1[x_]=-xf2[x_]=9-x^2
f3[x_]=-x+6
f[x_]=Which[x0,f1[x],0<x3,f2[x],x>3,f3[x]]
Plot[f[x],{x,-10,10}]
-x
9-x2
6-x
Which[x0,f1[x],0<x3,f2[x],x>3,f3[x]]
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