Calculate.

a) [[$ -\left ( \displaystyle\frac {1} {2} \right )^2 = $]]

b) [[$ -10^4 = $]]

c) [[$ \left ( -\displaystyle\frac {1} {2} \right )^5 = $]]

d) [[$ -\displaystyle\frac {1^3} {3} = $]]