37 lines
902 B
Python
37 lines
902 B
Python
from .context import assert_equal, _Add, _Mul, _Pow
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import pytest
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from sympy import binomial, Symbol
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x = Symbol('x', real=True)
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y = Symbol('y', real=True)
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theta = Symbol('theta', real=True)
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gamma = Symbol('gamma', real=True)
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def test_binomial_numeric():
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assert_equal("\\binom{16}{2}", binomial(16, 2))
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def test_binomial_symbols():
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assert_equal("\\binom{x}{y}", binomial(x, y))
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def test_binomial_greek_symbols():
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assert_equal("\\binom{\\theta}{\\gamma}", binomial(theta, gamma))
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def test_binomial_expr():
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assert_equal("\\binom{16+2}{\\frac{4}{2}}", binomial(_Add(16, 2), _Mul(4, _Pow(2, -1)), evaluate=False))
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def test_choose_numeric():
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assert_equal("\\choose{16}{2}", binomial(16, 2))
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def test_choose_symbols():
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assert_equal("\\choose{x}{y}", binomial(x, y))
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def test_choose_greek_symbols():
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assert_equal("\\choose{\\theta}{\\gamma}", binomial(theta, gamma))
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