Round[x] gives the integer closest to x. Round[x, a] rounds to the nearest multiple of a.

SawtoothWave[x] gives a sawtooth wave that varies from 0 to 1 with unit period.SawtoothWave[{min, max}, x] gives a sawtooth wave that varies from min to max with unit period.

Sec[z] gives the secant of z.

SplineClosed is an option for B-spline functions and graphics primitives that specifies whether spline curves or surfaces should be closed.

Symbol["name"] refers to a symbol with the specified name.

f /: lhs = rhs assigns rhs to be the value of lhs, and associates the assignment with the symbol f.

x*y*z, x*y*z, or x y z represents a product of terms.

ZetaZero[k] represents the k\[Null]^th zero of the Riemann zeta function on the critical line.ZetaZero[k, t] represents the k\[Null]^th zero with imaginary part greater than ...

In addition to the interfaces of Import and Export, Mathematica 8 comes with an autoloading mechanism that simplifies the registration of formats used by the Import and ...

In doing many kinds of calculations, you need to evaluate expressions when variables take on particular values. In many cases, you can do this simply by applying ...