diff options
Diffstat (limited to 'numpy/lib')
| -rw-r--r-- | numpy/lib/function_base.py | 11 | ||||
| -rw-r--r-- | numpy/lib/polynomial.py | 3 | ||||
| -rw-r--r-- | numpy/lib/twodim_base.py | 4 |
3 files changed, 15 insertions, 3 deletions
diff --git a/numpy/lib/function_base.py b/numpy/lib/function_base.py index 5ca797864..19037d975 100644 --- a/numpy/lib/function_base.py +++ b/numpy/lib/function_base.py @@ -1128,6 +1128,17 @@ def interp(x, xp, fp, left=None, right=None): >>> np.interp(3.14, xp, fp, right=UNDEF) -99.0 + Plot an interpolant to the sine function: + + >>> x = np.linspace(0, 2*np.pi, 10) + >>> y = np.sin(x) + >>> xvals = np.linspace(0, 2*np.pi, 50) + >>> yinterp = np.interp(xvals, x, y) + >>> import matplotlib.pyplot as plt + >>> plt.plot(x, y, 'o') + >>> plt.plot(xvals, yinterp, '-x') + >>> plt.show() + """ if isinstance(x, (float, int, number)): return compiled_interp([x], xp, fp, left, right).item() diff --git a/numpy/lib/polynomial.py b/numpy/lib/polynomial.py index bce7f0e4e..7e3a02107 100644 --- a/numpy/lib/polynomial.py +++ b/numpy/lib/polynomial.py @@ -277,7 +277,7 @@ def polyint(p, m=1, k=None): def polyder(p, m=1): """ - Return the derivative of order m of a polynomial. + Return the derivative of the specified order of a polynomial. Parameters ---------- @@ -295,6 +295,7 @@ def polyder(p, m=1): See Also -------- polyint : Anti-derivative of a polynomial. + poly1d : Class for one-dimensional polynomials. Examples -------- diff --git a/numpy/lib/twodim_base.py b/numpy/lib/twodim_base.py index 69eecbd87..cc33923ad 100644 --- a/numpy/lib/twodim_base.py +++ b/numpy/lib/twodim_base.py @@ -165,14 +165,14 @@ def eye(N, M=None, k=0, dtype=float): Number of columns in the output. If None, defaults to `N`. k : int, optional Index of the diagonal: 0 refers to the main diagonal, a positive value - refers to an upper diagonal and a negative value to a lower diagonal. + refers to an upper diagonal, and a negative value to a lower diagonal. dtype : dtype, optional Data-type of the returned array. Returns ------- I : ndarray (N,M) - An array where all elements are equal to zero, except for the k'th + An array where all elements are equal to zero, except for the `k`-th diagonal, whose values are equal to one. See Also |