I am tasked with the following exercise;

Write a Mathematica function called randomHop that takes as its argument a list containing two coordinates x and y; your definition should begin

randomHop[{x_, y_}] := 

The function should then generate a random integer r equal to 1 or 2 (this should be locally scoped), and then

• if r is equal to 1, return {{0.5, 0.5}, {0.5, 0.5}} . {x, y};

• if r is 2, return {{-0.5, -0.5}, {0.5, -0.5}} . {x, y} + {1.0, 0}.

I have so far tried

randomHop[{x_, y_}] := (
  r = RandomInteger[{1, 2}]
  If[r == 1, Return[{{0.5, 0.5}, {0.5, 0.5}}.{x, y}], 
  Return[{{-0.5, -0.5}, {0.5, -0.5}} . {x, y} + {1.0, 0}]])

but it's not working, and I don't know why. Any help would be appreciated.

I want to code that will do the following:

Write a Mathematica function called randomHop that takes as its argument a list containing two coordinates x and y; your definition should begin

randomHop[{x_, y_}] := 

The function should then generate a random integer r equal to 1 or 2 (this should be locally scoped), and then

• if r is equal to 1, return {{0.5, 0.5}, {0.5, 0.5}} . {x, y};

• if r is 2, return {{-0.5, -0.5}, {0.5, -0.5}} . {x, y} + {1.0, 0}.

I have so far tried

randomHop[{x_, y_}] := (
  r = RandomInteger[{1, 2}]
  If[r == 1, Return[{{0.5, 0.5}, {0.5, 0.5}}.{x, y}], 
  Return[{{-0.5, -0.5}, {0.5, -0.5}} . {x, y} + {1.0, 0}]])

but it's not working, and I don't know why. Any help would be appreciated.

I need to do the following:

Write a Mathematica function called randomHop that takes as its argument a list containing two coordinates x and y; your definition should begin

randomHop[{x_, y_}] :=

The function should then generate a random integer r equal to 1 or 2 (this should be locally scoped), and then

• if r is equal to 1, return {{0.5, 0.5}, {0.5, 0.5}} . {x, y};
• if r is 2, return {{-0.5, -0.5}, {0.5, -0.5}} . {x, y} + {1.0, 0}.

I have so far tried

randomHop[{x_, y_}] := (
  r = RandomInteger[{1, 2}]
  If[r == 1, Return[{{0.5, 0.5}, {0.5, 0.5}}.{x, y}], 
  Return[{{-0.5, -0.5}, {0.5, -0.5}} . {x, y} + {1.0, 0}]])

but it's not working and I don't know why. Any help would be appreciated.

I am tasked with the following exercise;

Write a Mathematica function called randomHop that takes as its argument a list containing two coordinates x and y; your definition should begin

randomHop[{x_, y_}] := 

The function should then generate a random integer r equal to 1 or 2 (this should be locally scoped), and then

• if r is equal to 1, return {{0.5, 0.5}, {0.5, 0.5}} . {x, y};

• if r is 2, return {{-0.5, -0.5}, {0.5, -0.5}} . {x, y} + {1.0, 0}.

I have so far tried

randomHop[{x_, y_}] := (
  r = RandomInteger[{1, 2}]
  If[r == 1, Return[{{0.5, 0.5}, {0.5, 0.5}}.{x, y}], 
  Return[{{-0.5, -0.5}, {0.5, -0.5}} . {x, y} + {1.0, 0}]])

but it's not working, and I don't know why. Any help would be appreciated.