assertFalse(getMap().containsKey(k0()));

    assertTrue(getMap().containsKey(k1()));
    assertTrue(getMap().inverse().containsKey(null));
    assertNull(getMap().get(k1()));
    assertEquals(k1(), getMap().inverse().get(null));
    assertEquals(1, getMap().size());
  }

  // nb: inverse is run through its own entire suite

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(ZERO)

        .inOrder();
    // backward map ordered by country
    assertThat(bimap.inverse().keySet())
        .containsExactly(Country.CANADA, Country.CHILE, Country.SWITZERLAND)
        .inOrder();
    // backward map ordered by country (even for currency values)
    assertThat(bimap.inverse().values())
        .containsExactly(Currency.DOLLAR, Currency.PESO, Currency.FRANC)
        .inOrder();
  }

      Entry<V, K> reversed = reverseEntry(entry);
      BiMap<V, K> inv = getMap().inverse();
      assertFalse(
          "Inverse should not contain entry " + reversed, inv.entrySet().contains(reversed));
      assertFalse(
          "Inverse should not contain key " + reversed.getKey(),
          inv.containsKey(reversed.getKey()));
      assertFalse(
          "Inverse should not contain value " + reversed.getValue(),

  @LazyInit @RetainedWith @CheckForNull private transient ImmutableBiMap<V, K> inverse;

  @Override
  public ImmutableBiMap<V, K> inverse() {
    if (isEmpty()) {
      return ImmutableBiMap.of();
    }
    ImmutableBiMap<V, K> result = inverse;
    return (result == null) ? inverse = new Inverse() : result;
  }

  private final class Inverse extends ImmutableBiMap<V, K> {

    @Override
    public int size() {

  @CollectionSize.Require(absent = ZERO)
  public void testRemoveFromInverseRemovesFromForward() {
    getMap().inverse().remove(v0());
    expectMissing(e0());
  }

  @MapFeature.Require(SUPPORTS_REMOVE)
  @CollectionSize.Require(absent = ZERO)
  public void testRemoveFromInverseKeySetRemovesFromForward() {
    getMap().inverse().keySet().remove(v0());
    expectMissing(e0());
  }

  @MapFeature.Require(SUPPORTS_REMOVE)

import (
	"crypto/internal/nistec"
	"math/big"
)

func (c p256Curve) Inverse(k *big.Int) *big.Int {
	if k.Sign() < 0 {
		// This should never happen.
		k = new(big.Int).Neg(k)
	}
	if k.Cmp(c.params.N) >= 0 {
		// This should never happen.
		k = new(big.Int).Mod(k, c.params.N)
	}
	scalar := k.FillBytes(make([]byte, 32))
	inverse, err := nistec.P256OrdInverse(scalar)
	if err != nil {

//    DEC       -10,+10      5200      1.6e-15      2.8e-16
//    IEEE      -10,+10     30000      1.8e-14      2.2e-15

// Acos returns the inverse cosine of x.
func Acos(x complex128) complex128 {
	w := Asin(x)
	return complex(math.Pi/2-real(w), -imag(w))
}

// Acosh returns the inverse hyperbolic cosine of x.
func Acosh(x complex128) complex128 {
	if x == 0 {
		return complex(0, math.Copysign(math.Pi/2, imag(x)))
	}

		`"k8s.io/kubernetes/cmd/import-boss/testdata/inverse/forbidden" <- "k8s.io/kubernetes/cmd/import-boss/testdata/inverse/aaa" is forbidden`,
		`"k8s.io/kubernetes/cmd/import-boss/testdata/inverse/forbidden/f1" <- "k8s.io/kubernetes/cmd/import-boss/testdata/inverse/aaa" is forbidden`,
		`"k8s.io/kubernetes/cmd/import-boss/testdata/inverse/allowed/a2" <- "k8s.io/kubernetes/cmd/import-boss/testdata/inverse/allowed" did not match any rule`,

	var p = getEventPoint(evt);

	p = p.matrixTransform(g.getCTM().inverse());

	// Compute new scale matrix in current mouse position
	var k = root.createSVGMatrix().translate(p.x, p.y).scale(z).translate(-p.x, -p.y);

	setCTM(g, g.getCTM().multiply(k));

	if(typeof(stateTf) == "undefined")
		stateTf = g.getCTM().inverse();

	stateTf = stateTf.multiply(k.inverse());
}

/**
 * Handle mouse move event.
 */

  /**
   * Returns the inverse view of this bimap, which maps each of this bimap's values to its
   * associated key. The two bimaps are backed by the same data; any changes to one will appear in
   * the other.
   *
   * <p><b>Note:</b>There is no guaranteed correspondence between the iteration order of a bimap and
   * that of its inverse.
   *
   * @return the inverse view of this bimap
   */