Errors in Solving
           y' = -y + 2 cos(x),  y(0) = 1

                         h=.2      h=.1      h=.05
       x         Y       Y-y       Y-y        Y-y
    0.0000    1.0000    0.0000    0.0000    0.0000
    0.2000    1.2000   -0.0213   -0.0103   -0.0050
    0.4000    1.3520   -0.0415   -0.0201   -0.0099
    0.6000    1.4500   -0.0601   -0.0291   -0.0143
    0.8000    1.4902   -0.0761   -0.0369   -0.0182
    1.0000    1.4708   -0.0890   -0.0432   -0.0213
    1.2000    1.3928   -0.0984   -0.0478   -0.0236
    1.4000    1.2592   -0.1037   -0.0505   -0.0249
    1.6000    1.0753   -0.1049   -0.0512   -0.0253
    1.8000    0.8486   -0.1019   -0.0498   -0.0246
    2.0000    0.5880   -0.0948   -0.0464   -0.0230
    2.2000    0.3039   -0.0839   -0.0412   -0.0204
    2.4000    0.0077   -0.0697   -0.0343   -0.0170
    2.6000   -0.2888   -0.0526   -0.0260   -0.0130
    2.8000   -0.5738   -0.0335   -0.0167   -0.0084
    3.0000   -0.8359   -0.0130   -0.0068   -0.0035
    3.2000   -1.0647    0.0081    0.0034    0.0016
    3.4000   -1.2511    0.0288    0.0135    0.0066
    3.6000   -1.3876    0.0483    0.0231    0.0113
    3.8000   -1.4688    0.0660    0.0317    0.0156
    4.0000   -1.4914    0.0810    0.0391    0.0192
    4.2000   -1.4546    0.0927    0.0449    0.0221
    4.4000   -1.3598    0.1008    0.0489    0.0241
    4.6000   -1.2108    0.1049    0.0510    0.0252
    4.8000   -1.0135    0.1048    0.0511    0.0252
    5.0000   -0.7758    0.1005    0.0491    0.0242