# Tag: arithmetic

## Stress Testing Dynamic R/exams Exercises tutorials

Before actually using a dynamic exercise in a course it should be thoroughly tested. While certain aspects require critical reading by a human, other aspects can be automatically stress-tested in R. Read More ›

## R/exams @ useR! 2019 general

Pre-conference tutorial about R/exams at useR! 2019 (The R User Conference) in Toulouse: Slides, example code, and links to further information. Read More ›

## fruit2: Image-Based Systems of Linear Equations (Single-Choice) templates

Exercise template for solving a system of three linear equations (single-choice) with a problem description based on shuffled images. Read More ›

## fruit: Image-Based Systems of Linear Equations (Numeric) templates

Exercise template for solving a system of three linear equations (numeric answer) with a problem description based on shuffled images. Read More ›

## From Static to Numeric to Single-Choice Exercises in R/exams tutorials

Tutorial for turning a static arithmetic exercise into a dynamic numeric exercise template and furthermore into a dynamic single-choice exercise template. Read More ›

## tstat2: 1-Sample t-Test Statistic (Single-Choice) templates

Exercise template for computing the t-test statistic (single-choice) from given hypothesized mean and empirical mean and variance. Read More ›

## tstat: 1-Sample t-Test Statistic templates

Exercise template for computing the t-test statistic (numeric answer) from given hypothesized mean and empirical mean and variance. Read More ›

## lagrange: Method of Lagrange Multipliers templates

Exercise template for minimizing a linear objective function with two arguments subject to a Cobb-Douglas-type constraint. Both the parameters of the functions and the exact question (argument 1 vs. argument 2 vs. function value in optimum) are drawn randomly. Read More ›

## hessian: 2x2 Hessian Matrix (Single-Choice) templates

Exercise template for computing the Hessian for a given function with randomly-drawn parameters. Read More ›

## dist3: Distances and the Pythagorean Theorem (Single-Choice) templates

Exercise template for computing the distance (single-choice) between two randomly-drawn points in a Cartesian coordinate system. Read More ›