public ProductExpressionList Divide(AlgebraExpression expression)
{
return(expression is ProductExpressionList
? ExpressionFactory.Product(this, ExpressionFactory.Reciprocal(expression))
: ExpressionFactory.Divide(this, expression)
);
}
public ProductExpressionList Multiply(AlgebraExpression expression)
{
return(expression is ProductExpressionList
? ExpressionFactory.Product(this.Terms.Concat((expression as ProductExpressionList).Terms).ToImmutableList())
: ExpressionFactory.Multiply(this, expression)
);
}
public AlgebraExpression Simplify(DifferentiationExpression expression, CancellationToken cancellationToken)
{
if (expression.Expression is ProductExpressionList product)
{
return(Sum(
product.Terms
.Select(t =>
ExpressionFactory.Product(
new[] { t.Differentiate(expression.RespectTo) }
.Concat(product.Terms.Except(new[] { t }))
.ToImmutableList()
)
)
.ToImmutableList()
));
}
return(expression);
}
public ProductExpressionList WithTerms(IImmutableList <AlgebraExpression> newTerms)
{
return(ExpressionFactory.Product(newTerms));
}