Non-strict orders: ≤ The symbol ≤ denotes a generalization of “less than or equal”, and it defines either a partial or total ordering over a set P (in the table below a,b ∈ P): Constraint (Non-strict) partial order (Non-strict) total order Reflexivity: a ≤ a x x Antisymmetry: if a ≤ b and b ≤ …
Question: When can a distance function d(x,y) be called metric, pseudo-metric, quasi-metric or semi-metric? Constraint Metric Pseudo Quasi Semi Non-negativity: d(x,y) ≥ 0 x x x x Identity of indiscernibles: d(x,y)=0 ⇒ x=y x x x Symmetry: d(x,y) = d(y,x) x x x Triangle inequality: d(x,z) ≤ d(x,y)+d(y,z) x x x Table derived from Wikipedia …
This table lists the number of total tiles for increasing zoom-level in a tile cache. The tile cache is assumed to be pyramidal: [latex]\left|z_{i}\right| = n \Rightarrow \left|z_{i+1}\right| = n \dot 4[/latex]. level 1: 1 tile level 2: 5 tiles level 3: 21 tiles level 4: 85 tiles level 5: 341 tiles level 6: 1,365 …
See below for commands using the Fusion Tables API. Example table is the oldschool message wall public table. Note that examples are shown first without the required url-encoding. Authenticating: Getting the auth token To authenticate you may use the following test account myjdoe. account: myjdoe@gmail.com password: JoesSecret curl -H "Content-type: application/x-www-form-urlencoded" -d "accountType=GOOGLE &Email=myjdoe@gmail.com&Passwd=JoesSecret&service=fusiontables&source=skipperkongen.dk" https://www.google.com/accounts/ClientLogincurl …