mirror of
https://github.com/void-linux/void-packages.git
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faa5bf4b2a
Also: - support networkx 3.1 (sagemath#35584) - support linbox 1.7.0 (sagemath#35612) - support maxima 5.46.0 (sagemath#35619) - support sympy 1.12 (sagemath#35635)
54 lines
2.1 KiB
Diff
54 lines
2.1 KiB
Diff
diff --git a/src/sage/calculus/calculus.py b/src/sage/calculus/calculus.py
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index dae380180ac..ca3c59e63d2 100644
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--- a/src/sage/calculus/calculus.py
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+++ b/src/sage/calculus/calculus.py
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@@ -1690,8 +1690,11 @@ def laplace(ex, t, s, algorithm='maxima'):
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Testing SymPy::
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- sage: laplace(t^n, t, s, algorithm='sympy')
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- (gamma(n + 1)/(s*s^n), 0, re(n) > -1)
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+ sage: F, a, cond = laplace(t^n, t, s, algorithm='sympy')
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+ sage: a, cond
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+ (0, re(n) > -1)
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+ sage: F.simplify()
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+ s^(-n - 1)*gamma(n + 1)
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Testing Maxima::
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@@ -1700,17 +1703,19 @@ def laplace(ex, t, s, algorithm='maxima'):
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Check that :trac:`24212` is fixed::
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- sage: laplace(cos(t^2), t, s, algorithm='sympy')
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- (-1/2*sqrt(pi)*(sqrt(2)*cos(1/4*s^2)*fresnel_sin(1/2*sqrt(2)*s/sqrt(pi)) -
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- sqrt(2)*fresnel_cos(1/2*sqrt(2)*s/sqrt(pi))*sin(1/4*s^2) - cos(1/4*pi + 1/4*s^2)),
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- 0, True)
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+ sage: F, a, cond = laplace(cos(t^2), t, s, algorithm='sympy')
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+ sage: a, cond
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+ (0, True)
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+ sage: F._sympy_().simplify()
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+ sqrt(pi)*(sqrt(2)*sin(s**2/4)*fresnelc(sqrt(2)*s/(2*sqrt(pi))) -
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+ sqrt(2)*cos(s**2/4)*fresnels(sqrt(2)*s/(2*sqrt(pi))) + cos(s**2/4 + pi/4))/2
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Testing result from SymPy that Sage doesn't know how to handle::
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sage: laplace(cos(-1/t), t, s, algorithm='sympy')
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Traceback (most recent call last):
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...
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- AttributeError: Unable to convert SymPy result (=meijerg(((), ()), ((-1/2, 0, 1/2), (0,)), s**2/16)/4) into Sage
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+ AttributeError: Unable to convert SymPy result (=meijerg(((), ()), ((-1/2, 0, 1/2), (0,)), ...)/4) into Sage
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"""
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if not isinstance(ex, (Expression, Function)):
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ex = SR(ex)
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@@ -1817,8 +1822,8 @@ def inverse_laplace(ex, s, t, algorithm='maxima'):
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Transform an expression involving a time-shift, via SymPy::
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- sage: inverse_laplace(1/s^2*exp(-s), s, t, algorithm='sympy')
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- -(log(e^(-t)) + 1)*heaviside(t - 1)
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+ sage: inverse_laplace(1/s^2*exp(-s), s, t, algorithm='sympy').simplify()
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+ (t - 1)*heaviside(t - 1)
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The same instance with Giac::
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