Ximera tutorial

How to use Ximera

This course is built in Ximera.

How is my work scored?

We explain how your work is scored.

Understanding functions

Same or different?

Two young mathematicians examine one (or two!) functions.

For each input, exactly one output

We define the concept of a function.

Compositions of functions

We discuss compositions of functions.

Inverses of functions

Here we ‘‘undo’’ functions.

Increasing and Decreasing Nature of Functions

Financial Mathematics

Review of famous functions

How crazy could it be?

Two young mathematicians think about the plots of functions.

Polynomial functions

Polynomials are some of our favorite functions.

Rational functions

Rational functions are functions defined by fractions of polynomials.

Exponential and logarithmetic functions

Exponential and logarithmic functions illuminated.

What is a limit?

Stars and functions

Two young mathematicians discuss stars and functions.

What is a limit?

We introduce limits.

Limit laws

Equal or not?

Here we see a dialogue where students discuss combining limits with arithmetic.

Continuity

Continuity is defined by limits.

The limit laws

We give basic laws for working with limits.

Continuity of piecewise functions

Here we use limits to ensure piecewise functions are continuous.

(In)determinate forms

Could it be anything?

Two young mathematicians investigate the arithmetic of large and small numbers.

Limits of the form zero over zero

We want to evaluate limits where the Limit Laws do not directly apply.

Limits of the form nonzero over zero

We want to solve limits that have the form nonzero over zero.

Continuity and Intervals

Why does it work?

Here we see a dialogue where students discuss solving inequalities as they learned in precalculus.

The Intermediate Value Theorem

Here we see a consequence of a function being continuous.

Sign Tables

Solving Inequalities

Definition of the derivative

Slope of a curve

Two young mathematicians discuss the novel idea of the ‘‘slope of a curve.’’

The definition of the derivative

We compute the instantaneous growth rate by computing the limit of average growth rates.

Derivatives as functions

Wait for the right moment

Two young mathematicians discuss derivatives as functions.

The derivative as a function

Here we study the derivative of a function, as a function, in its own right.

3

We see that if a function is differentiable at a point, then it must be continuous at that point.

Rules of differentiation

Patterns in derivatives

Two young mathematicians think about ‘‘short cuts’’ for differentiation.

Basic rules of differentiation

We derive the constant rule, power rule, and sum rule.

Product rule and quotient rule

Derivatives of products are tricky

Two young mathematicians discuss derivatives of products and products of derivatives.

The Product rule and quotient rule

Here we compute derivatives of products and quotients of functions

Chain rule

A coincidence?

The chain rule

Here we compute derivatives of compositions of functions

Derivatives of Exponential Functions

Exponential Functions and Derivatives

The derivative of the natural exponential function

We derive the derivative of the natural exponential function.

Derivatives of general exponential functions

We derive the derivatives of general exponential functions using the chain rule.

Derivative of Logarithmic Functions

We can figure it out

Two young mathematicians discuss the derivative of inverse functions.

Derivatives of inverse exponential functions

We derive the derivatives of inverse exponential functions using implicit differentiation.

The Inverse Function Theorem

We see the theoretical underpinning of finding the derivative of an inverse function at a point.

Implicit differentiation

Standard form

Two young mathematicians discuss the standard form of a line.

Implicit differentiation

In this section we differentiate equations without expressing them in terms of a single variable.

Logarithmic differentiation

Multiplication to addition

Two young mathematicians think about derivatives and logarithms.

Logarithmic differentiation

We use logarithms to help us differentiate.

Higher order derivatives

Higher order derivatives

Here we look at higher order derivatives.

Linear approximation

Replacing curves with lines

Two young mathematicians discuss linear approximation.

Linear approximation

We use a method called ‘‘linear approximation’’ to estimate the value of a (complicated) function at a given point.

Maximums and minimums

More coffee

Two young mathematicians witness the perils of drinking too much coffee.

Increasing and Decreasing

Maximums and minimums

We use derivatives to help locate extrema.

Concavity and the Second Derivative Test

Rates of rates

Two young mathematicians look at graph of a function, its first derivative, and its second derivative.

Concavity

Here we examine what the second derivative tells us about the geometry of functions.

Second derivative test

Here we look at the second derivative test.

Global Extrema on Closed Intervals

The Extreme Value Theorem

We examine a fact about continuous functions.

Finding Extrema on Closed Intervals

We show a procedure to find global extrema on closed intervals.

Using limits to detect asymptotes

Zoom out

Two young mathematicians discuss what curves look like when one ‘‘zooms out.’’

Vertical asymptotes

We explore functions that ‘‘shoot to infinity’’ at certain points in their domain.

Horizontal asymptotes

We explore functions that behave like horizontal lines as the input grows without bound.

Concepts of graphing functions

What’s the graph look like?

Two young mathematicians discuss how to sketch the graphs of functions.

Concepts of graphing functions

We use the language of calculus to describe graphs of functions.

Computations for graphing functions

Wanted: graphing procedure

Two young mathematicians discuss how to sketch the graphs of functions.

Computations for graphing functions

We will give some general guidelines for sketching the plot of a function.

Optimization

A mysterious formula

Two young mathematicians discuss optimization from an abstract point of view.

Basic optimization

Now we put our optimization skills to work.

Applied optimization

Volumes of aluminum cans

Two young mathematicians discuss optimizing aluminum cans.

Applied optimization

Now we put our optimization skills to work.

Antiderivatives

Jeopardy! Of calculus

Two young mathematicians discuss a ‘Jeopardy!’ version of calculus.

Basic antiderivatives

We introduce antiderivatives.

Integration with Initial Conditions

Integration With Initial Conditions

Approximating the area under a curve

What is area?

Two young mathematicians discuss the idea of area.

Approximating area with rectangles

We introduce the basic idea of using rectangles to approximate the area under a curve.

Definite integrals

Computing areas

Two young mathematicians discuss cutting up areas.

The definite integral

Definite integrals compute signed area.

First Fundamental Theorem of Calculus

What’s in a calculus problem?

Two young mathematicians discuss what calculus is all about.

The First Fundamental Theorem of Calculus

The rate that accumulated area under a curve grows is described identically by that curve.

Second Fundamental Theorem of Calculus

A secret of the definite integral

Two young mathematicians discuss what calculus is all about.

The Second Fundamental Theorem of Calculus

The accumulation of a rate is given by the change in the amount.

A tale of three integrals

At this point we have three ‘‘different’’ integrals.

The idea of substitution

Geometry and substitution

Two students consider substitution geometrically.

The idea of substitution

We learn a new technique, called substitution, to help us solve problems involving integration.

Working with substitution

Integrals are puzzles!

Two young mathematicians discuss how tricky integrals are puzzles.

Working with substitution

We explore more difficult problems involving substitution.

Areas between curves

Area between curves

We compute the area of a region between two curves using the definite integral.

Consumers’ and Producers’ Surplus

Consumers’ and producers’ surplus

Introduction to differential equations

Modeling the spread of infectious diseases

Two young mathematicians discuss differential equations.

Differential equations

We study equations with that relate functions with their rates.

Separable differential equations

Separable differential equations are those in which the dependent and independent variables can be separated on opposite sides of the equation.

Functions of several variables

Functions of several variables

We introduce functions that take vectors or points as inputs and output a number.

Partial derivatives

Partial derivatives

We introduce partial derivatives.

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