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Student Support Forum > General > > "slot notation"

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Please answer this:3+2 =



Original Message (ID '129640') By Michael:
Try applying the function N[..]: N[{{Root[-1 - #1 - 2 #1^2 + #1^3 &, 1]}, {{1 + 5 Root[-1 - #1 - 2 #1^2 + #1^3 &, 1] - 2 Root[-1 - #1 - 2 #1^2 + #1^3 &, 1]^2, -2 - 4 Root[-1 - #1 - 2 #1^2 + #1^3 &, 1] + 2 Root[-1 - #1 - 2 #1^2 + #1^3 &, 1]^2, 3 Root[-1 - #1 - 2 #1^2 + #1^3 &, 1] - Root[-1 - #1 - 2 #1^2 + #1^3 &, 1]^2, 1 - 5 Root[-1 - #1 - 2 #1^2 + #1^3 &, 1] + 2 Root[-1 - #1 - 2 #1^2 + #1^3 &, 1]^2, 1}}} ] (The Root[..] function represents the exact values. The function N[..] converts them to approximate Reals.)