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fix math.acosh #2315

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Merged
coolreader18 merged 1 commit into from
Oct 30, 2020
Merged

fix math.acosh #2315

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2 changes: 0 additions & 2 deletions Lib/test/test_math.py
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Original file line number Diff line number Diff line change
Expand Up @@ -260,8 +260,6 @@ def testAcos(self):
self.assertRaises(ValueError, math.acos, -1 - eps)
self.assertTrue(math.isnan(math.acos(NAN)))

# TODO: RUSTPYTHON
@unittest.expectedFailure
def testAcosh(self):
self.assertRaises(TypeError, math.acosh)
self.ftest('acosh(1)', math.acosh(1), 0)
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10 changes: 9 additions & 1 deletion vm/src/stdlib/math.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -225,7 +225,15 @@ fn math_radians(x: IntoPyFloat) -> f64 {
}

// Hyperbolic functions:
make_math_func!(math_acosh, acosh);
fn math_acosh(x: IntoPyFloat, vm: &VirtualMachine) -> PyResult<f64> {
let x = x.to_f64();
if x.is_sign_negative() || x.is_zero() {
Err(vm.new_value_error("math domain error".to_owned()))
} else {
Ok(x.acosh())
}
}

make_math_func!(math_asinh, asinh);
make_math_func!(math_atanh, atanh);
make_math_func!(math_cosh, cosh);
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