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https://github.com/crowlogic/arb4j/issues/253
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152 changes: 152 additions & 0 deletions
152
src/main/java/arb/functions/real/TestCompiledDerivative.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| package arb.functions.real; | ||
|
|
||
| import arb.Initializable; | ||
| import arb.Integer; | ||
| import arb.Real; | ||
| import arb.Typesettable; | ||
| import arb.documentation.BusinessSourceLicenseVersionOnePointOne; | ||
| import arb.documentation.TheArb4jLibrary; | ||
| import arb.expressions.nodes.DerivativeNode; | ||
| import junit.framework.TestCase; | ||
|
|
||
| /** | ||
| * Decompiled {@link DerivativeNode} test function | ||
| * | ||
| * @see BusinessSourceLicenseVersionOnePointOne © terms of the | ||
| * {@link TheArb4jLibrary} | ||
| */ | ||
| public class TestCompiledDerivative implements | ||
| RealFunctional<Object, RealFunction>, | ||
| Typesettable, | ||
| AutoCloseable, | ||
| Initializable | ||
| { | ||
| public boolean isInitialized; | ||
| public final Integer cℤ2 = new Integer("3"); | ||
| public final Integer cℤ1 = new Integer("2"); | ||
| public final Integer cℤ4 = new Integer("1"); | ||
| public final Integer cℤ3 = new Integer("0"); | ||
| public Real a; | ||
| public Real b; | ||
| public Real c; | ||
| public Real ifuncℝ4 = new Real(); | ||
| public Real ifuncℝ5 = new Real(); | ||
| public Integer iℤ2 = new Integer(); | ||
| public Real ifuncℝ6 = new Real(); | ||
| public Integer iℤ1 = new Integer(); | ||
| public Real ifuncℝ7 = new Real(); | ||
| public Real ifuncℝ1 = new Real(); | ||
| public Real ifuncℝ2 = new Real(); | ||
| public Real ifuncℝ3 = new Real(); | ||
| public Real ifuncℝ8 = new Real(); | ||
|
|
||
| public static void main(String args[]) | ||
| { | ||
| try ( TestCompiledDerivative derivative = new TestCompiledDerivative()) | ||
| { | ||
| derivative.a = Real.named("a").set(2); | ||
| derivative.b = Real.named("b").set(4); | ||
| derivative.c = Real.named("c").set(6); | ||
|
|
||
| RealFunction d = derivative.evaluate(null, 128); | ||
| double val = d.eval(2.3); | ||
| TestCase.assertEquals(115.61999999999998, val); | ||
| System.out.format("%s(2.3)=%s\n", d, val); | ||
| } | ||
|
|
||
| } | ||
|
|
||
| @Override | ||
| public Class<RealFunction> coDomainType() | ||
| { | ||
| return RealFunction.class; | ||
| } | ||
|
|
||
| @Override | ||
| public RealFunction evaluate(Object in, int order, int bits, RealFunction result) | ||
| { | ||
| if (!isInitialized) | ||
| { | ||
| initialize(); | ||
| } | ||
| RealFunction realFunction = new RealFunction() | ||
| { | ||
|
|
||
| @Override | ||
| public Real evaluate(Real input, int order, int bits, Real res) | ||
| { | ||
|
|
||
| return a.add(b.mul(cℤ1.mul(input.pow(cℤ1.sub(cℤ4, bits, iℤ1), bits, ifuncℝ1), bits, ifuncℝ2), bits, ifuncℝ3), | ||
| bits, | ||
| ifuncℝ4) | ||
| .add(c.mul(cℤ2.mul(input.pow(cℤ2.sub(cℤ4, bits, iℤ2), bits, ifuncℝ5), bits, ifuncℝ6), bits, ifuncℝ7), | ||
| bits, | ||
| ifuncℝ8); | ||
|
|
||
| } | ||
|
|
||
| @Override | ||
| public String toString() | ||
| { | ||
| return TestCompiledDerivative.this.toString(); | ||
| } | ||
| }; | ||
| return realFunction; | ||
| } | ||
|
|
||
| @Override | ||
| public void initialize() | ||
| { | ||
| if (isInitialized) | ||
| { | ||
| throw new AssertionError("Already initialized"); | ||
| } | ||
| else if (a == null) | ||
| { | ||
| throw new AssertionError("x-∂a*x+b*x²+c*x³⁄∂x.a is null"); | ||
| } | ||
| else if (b == null) | ||
| { | ||
| throw new AssertionError("x-∂a*x+b*x²+c*x³⁄∂x.b is null"); | ||
| } | ||
| else if (c == null) | ||
| { | ||
| throw new AssertionError("x-∂a*x+b*x²+c*x³⁄∂x.c is null"); | ||
| } | ||
| else | ||
| { | ||
| isInitialized = true; | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public void close() | ||
| { | ||
| cℤ2.close(); | ||
| cℤ1.close(); | ||
| cℤ4.close(); | ||
| cℤ3.close(); | ||
| ifuncℝ4.close(); | ||
| ifuncℝ5.close(); | ||
| iℤ2.close(); | ||
| ifuncℝ6.close(); | ||
| iℤ1.close(); | ||
| ifuncℝ7.close(); | ||
| ifuncℝ1.close(); | ||
| ifuncℝ2.close(); | ||
| ifuncℝ3.close(); | ||
| ifuncℝ8.close(); | ||
| } | ||
|
|
||
| @Override | ||
| public String toString() | ||
| { | ||
| return "x➔∂a*x+b*x²+c*x³/∂x"; | ||
| } | ||
|
|
||
| @Override | ||
| public String typeset() | ||
| { | ||
| return "a + b \\cdot 2 \\cdot {x}^{(\\left(2-1\\right))} + c \\cdot 3 \\cdot {x}^{(\\left(3-1\\right))}"; | ||
| } | ||
| } |
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