Building on Mathematica's unified symbolic architecture, Mathematica 7 introduces several major new integrated forms of data manipulation—including large-scale support for ...

Log[z] gives the natural logarithm of z (logarithm to base e). Log[b, z] gives the logarithm to base b.

ScalingFunctions is an option for BarChart, Histogram, and other charting functions that specifies what scaling functions should be used.

Cosh[z] gives the hyperbolic cosine of z.

Re[z] gives the real part of the complex number z.

CosIntegral[z] gives the cosine integral function Ci(z).

The Padé approximation is a rational function that can be thought of as a generalization of a Taylor polynomial. A rational function is the ratio of polynomials. Because ...

BernoulliB[n] gives the Bernoulli number B_n. BernoulliB[n, x] gives the Bernoulli polynomial B_n (x).

x + y + z represents a sum of terms.

All the functionality of NumericalMath`Approximations` is now available in the newly created Function Approximations Package.