package jscl.math.function.trigonometric;
import jscl.JsclMathEngine;
import jscl.math.function.Constant;
import jscl.math.function.ExtendedConstant;
import org.junit.Assert;
import org.junit.Test;
/**
* User: serso
* Date: 6/17/13
* Time: 10:36 PM
*/
public class CosTest {
@Test
public void testIntegral() throws Exception {
final JsclMathEngine me = JsclMathEngine.getInstance();
final ExtendedConstant.Builder t = new ExtendedConstant.Builder(new Constant("t"), 10d);
me.getConstantsRegistry().addOrUpdate(t.create());
Assert.assertEquals("-sin(t)", me.simplify("∂(cos(t),t,t,1)"));
Assert.assertEquals("∂(cos(t), t, t, 1°)", me.simplify("∂(cos(t),t,t,1°)"));
Assert.assertEquals("-0.17364817766693", me.evaluate("∂(cos(t),t,t,1)"));
Assert.assertEquals("∂(cos(t), t, t, 1°)", me.evaluate("∂(cos(t),t,t,1°)"));
Assert.assertEquals("-0.17364817766693", me.evaluate("∂(cos(t),t,t,2-1)"));
Assert.assertEquals("-0.17364817766693", me.evaluate("∂(cos(t),t,t,2^5-31)"));
}
}