internal override BaseDistribution InnerGetSumm(BaseDistribution value)
        {
            switch (value.InnerDistributionType)
            {
            case DistributionType.Number:
            {
                return(Mean + value.InnerMean);
            }

            case DistributionType.Continious:
            {
                return(ContinuousRandomMath.Add((ContinuousDistribution)value, Mean));
            }

            case DistributionType.Discrete:
            {
                return(DiscreteRandomMath.Add((DiscreteDistribution)value, Mean));
            }

            default:
            {
                throw new DistributionsInvalidOperationException();
            }
            }
        }
        internal override BaseDistribution InnerGetSumm(BaseDistribution value)
        {
            switch (value.InnerDistributionType)
            {
            case DistributionType.Continious:
            {
                var right = (ContinuousDistribution)value;

                if (BaseDistribution is NormalDistribution && right.BaseDistribution is NormalDistribution)
                {
                    return(ContinuousRandomMath.ConvolutionOfNormalAndNormal(this, right));
                }
                else if (BaseDistribution is UniformContinuousDistribution && right.BaseDistribution is UniformContinuousDistribution)
                {
                    return(ContinuousRandomMath.ConvolutionOfUniformAndUniform(this, right));
                }
                else if (BaseDistribution is NormalDistribution && right.BaseDistribution is UniformContinuousDistribution)
                {
                    return(ContinuousRandomMath.ConvolutionOfNormalAndUniform(this, right));
                }
                else if (BaseDistribution is UniformContinuousDistribution && right.BaseDistribution is NormalDistribution)
                {
                    return(ContinuousRandomMath.ConvolutionOfNormalAndUniform(right, this));
                }
                else if (BaseDistribution is NormalDistribution && right.BaseDistribution is BhattacharjeeDistribution)
                {
                    return(ContinuousRandomMath.ConvolutionOfNormalAndBhattacharjee(this, right));
                }
                else if (BaseDistribution is BhattacharjeeDistribution && right.BaseDistribution is NormalDistribution)
                {
                    return(ContinuousRandomMath.ConvolutionOfNormalAndBhattacharjee(right, this));
                }
                else if (BaseDistribution is StudentGeneralizedDistribution && right.BaseDistribution is UniformContinuousDistribution)
                {
                    return(ContinuousRandomMath.ConvolutionOfStudentAndUniform(this, right));
                }
                else if (BaseDistribution is UniformContinuousDistribution && right.BaseDistribution is StudentGeneralizedDistribution)
                {
                    return(ContinuousRandomMath.ConvolutionOfStudentAndUniform(right, this));
                }
                else
                {
                    return(Discretize() + right.Discretize());
                }
            }

            case DistributionType.Discrete:
            {
                return(Discretize() + value);
            }

            case DistributionType.Number:
            {
                return(ContinuousRandomMath.Add(this, (double)value));
            }

            default:
                throw new DistributionsInvalidOperationException();
            }
        }