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絶対値記号を含む関数




f(-2)=| (-2) - 2 |=| -4 |=4
f(0)=| 0 - 2 |=| -2 |=2
f(2)=| 2 - 2 |=| 0 |=0
f(4)=| 4 - 2 |=| 2 |=2



f(-2)=| (-2)2 - 1 |= | 4 - 1 |=3
f(-1)=| (-1)2 - 1 |= | 1 - 1 |=0
f(0)=| 02 - 1 |= | 0 - 1 |=1
f(1)=| 12 - 1 |= | 1 - 1 |=0
f(2)=| 22 - 1 |= | 4 - 1 |=3



f(-2)=| (-2) - 2 |+ | (-2) + 1 |=4 + 1=5
f(-1)=| (-1) - 2 |+ | (-1) + 1 |=3 + 0=3
f(0)=| 0 - 2 |+ | 0 + 1 |=2 + 1=3
f(1)=| 1 - 2 |+ | 1 + 1 |=1 + 2=3
f(2)=| 2 - 2 |+ | 2 + 1 |=0 + 3=3
f(3)=| 3 - 2 |+ | 3 + 1 |=1 + 4=5