How to use

getValue

method

in

jscl.math.function.IConstant

@Override
public void copy(@Nonnull MathEntity that) {
  this.constant.copy(that);
  if (that instanceof IConstant) {
    this.description = ((IConstant) that).getDescription();
    this.value = ((IConstant) that).getValue();
  }
  if (that instanceof ExtendedConstant) {
    this.javaString = ((ExtendedConstant) that).javaString;
  }
}

public void copy(@Nonnull MathEntity o) {
  if (o instanceof IConstant) {
    final IConstant that = ((IConstant) o);
    this.name = that.getName();
    this.value = that.getValue();
    this.description = that.getDescription();
    this.system = that.isSystem();
    if (that.isIdDefined()) {
      this.id = that.getId();
    }
  } else {
    throw new IllegalArgumentException("Trying to make a copy of unsupported type: " + o.getClass());
  }
}

@Nonnull
public static String toString(@Nonnull IConstant constant) {
  final Double doubleValue = constant.getDoubleValue();
  if (doubleValue == null) {
    final String stringValue = constant.getValue();
    if (!Strings.isEmpty(stringValue)) {
      return constant.getName() + " = " + stringValue;
    } else {
      return constant.getName();
    }
  } else {
    return constant.getName() + " = " + doubleValue;
  }
}

public Builder(@Nonnull IConstant iConstant) {
  this.name = iConstant.getName();
  this.value = iConstant.getValue();
  this.system = iConstant.isSystem();
  this.description = iConstant.getDescription();
  if (iConstant.isIdDefined()) {
    this.id = iConstant.getId();
  }
}

public NumericWrapper(@Nonnull Constant constant) {
  final IConstant constantFromRegistry = JsclMathEngine.getInstance().getConstantsRegistry().get(constant.getName());
  if (constantFromRegistry != null) {
    if (constantFromRegistry.getName().equals(Constants.I.getName())) {
      content = Complex.I;
    } else {
      if (constantFromRegistry.getValue() != null) {
        final Double value = constantFromRegistry.getDoubleValue();
        if (value == null) {
          throw new ArithmeticException("Constant " + constant.getName() + " has invalid definition: " + constantFromRegistry.getValue());
        } else {
          content = Real.valueOf(value);
        }
      } else {
        throw new ArithmeticException("Could not create numeric wrapper: constant in registry doesn't have specified value: " + constant.getName());
      }
    }
  } else {
    throw new ArithmeticException("Could not create numeric wrapper: constant is not registered in constants registry: " + constant.getName());
  }
}

  offset = varName.length();
} else {
  final String value = var.getValue();
  assert value != null;