# What's New in SnapXam

## Specify the variable to solve for in an equation

New solving method now allows you to specify the variable you want to solve for in an equation.
Try an example here

## Solve derivatives using the definition

Have you ever wondered where the derivative formulas came from? Learn how to solve derivatives of common functions using the definition of derivative, which is the limit of difference quotients of real numbers.
Check the calculator here

## Methods for solving Trigonometric Identities

Select between three different resolution methods: prove from LHS (left side of identity), prove from RHS (right side of identity), and prove by expressing both sides of the identity in terms of the trigonometric functions sine and cosine.
Check the calculator here

## Weierstrass Substitution

Now you can solve integrals by the Weierstrass Substitution method (also known as universal substitution or tangent half-angle substitution). This method allows us to convert integrals of trigonometric functions into an algebraic expression, generally easier to integrate than the original function.
Check the calculator here

## Tabular Integration

Now you can solve integrals by the tabular method, which is a variant of the integration by parts method and is applied to the product of two functions, where one must be polynomial and the other transcendent (trigonometric functions, exponentials, etc.).
Check the calculator here

Stay tuned for more updates!