f(x)=[ x^2 x<0 [ x+2 0≤x≤2 [4 x>2
I want to draw a graph of this function through Wolfram Alpha.I googled it for 3 hours, but I have no idea.I'd appreciate it if you could tell me the commands to enter.
WA understands some Mathematica commands.
You can search for those commands here
Searching for piecewise there provides documentation.
This appears to work in WA
piecewise[{{x^2,x<0},{x+2,0<=x<=2},{4,x>2}}]
This might be what you want.
f[x_] := Piecewise[{{x^2, x < 0}, {x + 2, 0 <= x <= 2}, {4, x > 2}}] Plot[f[x], {x, -4, 4}]
thank you so much,I didn't know that English speakers call this a piecewise. now i know
Thank you for your very kind reply. I copied and pasted it and it came out right away.
Thank you for your thoughtful response. I copied and pasted it, and it appeared immediately.
