Mathematics. 1  Either of the points at which an axis that passes through the center of a sphere intersects the surface of the sphere. The fixed point used as a reference in a system of polar coordinates. It corresponds to the origin in the Cartesian coordinate system.
The overall cost of a concrete patio depends on the design and size of the patio. Prices usually start at around $6 per square foot up to $10 per square foot for a basic design without any colors or special designs.Adding colors or a pattern to the design can increase the price to $15 per square foot.asic concrete patio costs: $6 to $10 per square foot. Custom concrete patio costs: $10 to $15 per square foot. Advanced or complex designs: $15 or more per square foot. Average patio costs: $2,800 to $4,000.
Oh sure, we can do calculations all day long to figure out that last week we installed a 430 sf patio for Mrs. Jones for $6,785.00, and yes, with some quick math, we know that it was installed for $15.78 per square foot.