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Feature: Polynomials and rational functions #469

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lounres merged 132 commits from feature/polynomials into dev 2022-07-28 18:04:06 +03:00
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1 changed files with 30 additions and 2 deletions
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32
kmath-functions/src/commonTest/kotlin/space/kscience/kmath/functions/ListPolynomialUtilTest.kt
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@ -15,8 +15,36 @@ import kotlin.test.assertFailsWith
class ListPolynomialUtilTest {
@Test
fun test_substitute_Double() {
val polynomial = ListPolynomial(1.0, -2.0, 1.0)
assertEquals(0.0, polynomial.substitute(1.0), 0.001)
assertEquals(
0.0,
ListPolynomial(1.0, -2.0, 1.0).substitute(1.0),
0.001,
"test 1"
)
assertEquals(
1.1931904761904761,
ListPolynomial(0.625, 2.6666666666666665, 0.5714285714285714, 1.5).substitute(0.2),
0.001,
"test 2"
)
assertEquals(
0.5681904761904762,
ListPolynomial(0.0, 2.6666666666666665, 0.5714285714285714, 1.5).substitute(0.2),
0.001,
"test 3"
)
assertEquals(
1.1811904761904761,
ListPolynomial(0.625, 2.6666666666666665, 0.5714285714285714, 0.0).substitute(0.2),
0.001,
"test 4"
)
assertEquals(
1.1703333333333332,
ListPolynomial(0.625, 2.6666666666666665, 0.0, 1.5).substitute(0.2),
0.001,
"test 5"
)
}
@Test
fun test_substitute_Constant() {