It is often casually stated that, for instance, the decoding gamma for sRGB data is 2.2, yet the actual exponent is 2.4. This is because the net effect of the piecewise decomposition is necessarily a changing instantaneous gamma at each point in the range: It goes from γ = 1 at zero to γ = 2.4 at maximum intensity with a median value being close to 2.2. Transformations can be designed to approximate a certain gamma with a linear portion near zero to avoid having an infinite slope at "K" = 0, which can cause numerical problems. The continuity condition for the curve formula_7 gives the linear-domain threshold formula_8: