How do I generate the conditions of a case statement in Verilog using a loop?

Code Verilog - [expand]
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real a;
           real sin;
           real pi = 3.141592653589793238462643383279;
                task angle;
                //Ignore the lack of brackets here, it was done intentionaly
                //Original source code has proper square brackets
        input reg 10:0 index;
        output real angle;
        begin
            case (index)
                //Create the case statement
                generate
                genvar caseIndex;
                    for (caseIndex = 0; caseIndex < 1024; caseIndex=caseIndex+1)
                    begin
                        caseIndex: angle = 2*pi*caseIndex/1024;
                    end
                endgenerate
            endcase
        end
    endtask

Code Verilog - [expand]
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case (index) 
                                10'd0: angle = 0;
                10'd1: angle = 0.00613592315154256;
                10'd2: angle = 0.0122718463030851;
                10'd3: angle = 0.0184077694546277;
                10'd4: angle = 0.0245436926061703;
                10'd5: angle = 0.0306796157577128;
                10'd6: angle = 0.0368155389092554;
                10'd7: angle = 0.042951462060798;
                10'd8: angle = 0.0490873852123405;
                10'd9: angle = 0.0552233083638831;
                10'd10: angle = 0.0613592315154256;
                10'd11: angle = 0.0674951546669682;
                10'd12: angle = 0.0736310778185108;
                10'd13: angle = 0.0797670009700533;
                10'd14: angle = 0.0859029241215959;
                10'd15: angle = 0.0920388472731385;
                10'd16: angle = 0.098174770424681;
                10'd17: angle = 0.104310693576224;

Code Verilog - [expand]
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real angle;
real deltaAngle = 0.00613592315154256;
    //Count up to the desired index
    //Compute the angle based on the equal increment deltaAngle
    //Equal increment is deltaAngle
  function calculateAngle;
        input (10:0) index;
        begin
          computedAngle = 0;
            for (indexAngle = 0; indexAngle <= index; indexAngle = indexAngle + 1)
            begin
                computedAngle = computedAngle + deltaAngle;
            end
            angle = computedAngle;
            calculateAngle = angle;
        end
    endfunction