tweak

Author: stevengj

README.md

@@ -5,7 +5,7 @@
 Fast multidimensional Chebyshev polynomial interpolation on a hypercube (Cartesian-product)
 domain, using a separable (tensor-product) grid of Chebyshev interpolation points, as well as Chebyshev regression (least-square fits) from an arbitrary set of points.   In both cases we support arbitrary dimensionality, complex and vector-valued functions, and fast derivative and Jacobian computation.
 
-[Chebyshev polynomials](https://en.wikipedia.org/wiki/Chebyshev_polynomials) are simply a well-behaved basis for polynomial functions in a given finite interval, so you can use FastChebInterp as a **robust and convenient way to perform multidimensional polynomial fitting and interpolation**.   Fitting to high-degree polynomials can be problematic unless your number of data points is much greater than the number of polynomial terms, but if you have a [smooth function](https://en.wikipedia.org/wiki/Smoothness) and interpolate from specially chosen points — the Chebyshev points, given by the function `chebpoints` below — then it is very well behaved, and in fact converges exponentially fast for analytic functions.  (See, for example, the book [*Approximation Theory and Approximation Practice*](https://www.chebfun.org/ATAP/) by Trefethen.)
+[Chebyshev polynomials](https://en.wikipedia.org/wiki/Chebyshev_polynomials) are simply a well-behaved basis for polynomial functions in a given finite interval, so you can use FastChebInterp as a **robust and convenient way to perform multidimensional polynomial fitting and interpolation**.   Fitting to high-degree polynomials can be problematic unless your number of data points is much greater than the number of polynomial terms, but if you have a [smooth function](https://en.wikipedia.org/wiki/Smoothness) and interpolate from specially chosen points — the Chebyshev points, given by the function `chebpoints` below — then it is very well behaved, and in fact converges exponentially quickly for analytic functions.  (See, for example, the book [*Approximation Theory and Approximation Practice*](https://www.chebfun.org/ATAP/) by Trefethen.)
 
 ## Usage