Matrix courses can help you learn linear transformations, eigenvalues, matrix operations, and applications in data science and machine learning. You can build skills in solving systems of equations, performing dimensionality reduction, and applying matrix factorization techniques. Many courses introduce tools like MATLAB, NumPy, and R, that support performing complex calculations and visualizing data in practical scenarios.

Scrimba
Skills you'll gain: Unit Testing, Test Case, Test Driven Development (TDD), Debugging, Software Testing, Development Testing, Test Automation, Test Tools, Quality Assurance
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Test Tools, Test Automation, Software Testing, Test Script Development, Test Case, Regression Testing, Test Execution Engine, Javascript and jQuery, Browser Compatibility, Automation, Software Design Patterns, UI Components, Java
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Quality Assurance, Software Quality Assurance, Test Planning, Test Case, Continuous Integration, DevOps, Software Testing, Regression Testing, Test Execution Engine, Agile Methodology, Risk Management, Automation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Strategic Decision-Making, Corporate Strategy, Business Strategy, Business Ethics, Strategic Planning, Growth Strategies, Strategic Thinking, Organizational Strategy, Strategic Leadership, Operational Efficiency, Performance Measurement, Business Process Reengineering, Organizational Effectiveness, Competitive Analysis, Market Share, Portfolio Management, Resource Allocation, Organizational Structure
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Unit Testing, IntelliJ IDEA, Apache Maven, Software Testing, Test Case, Testability, Test Tools, Java, Mockups
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Selenium (Software), JUnit, HTML and CSS, Test Automation, Software Testing, Test Script Development, Web Development, Software Quality Assurance, Continuous Integration, Java, Test Execution Engine, Object Oriented Programming (OOP), Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Test Case, Test Automation, Test Data, Functional Testing, Test Execution Engine, CI/CD, System Testing, Software Testing, No-Code Development, Debugging
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Ajax, Java Programming, Test Script Development, Java, Software Testing, Test Automation, Scripting, Web Development Tools, Object Oriented Programming (OOP), Automation, Debugging
Intermediate · Course · 3 - 6 Months

Skills you'll gain: SAS (Software), Descriptive Statistics, Market Data, Risk Modeling, Regression Analysis, Statistical Methods, Financial Modeling, Statistical Hypothesis Testing, Correlation Analysis, Data Analysis Software, Statistical Analysis, Quantitative Research, Financial Market, Time Series Analysis and Forecasting, Trend Analysis, Financial Analysis, Variance Analysis
Mixed · Course · 1 - 4 Weeks
Skills you'll gain: Blockchain, Business Transformation, Governance, Organizational Structure, Strategic Leadership, Emerging Technologies, Business Modeling, Business Management, New Business Development, Social Impact, Innovation, Intellectual Property
Mixed · Course · 1 - 3 Months
University of Colorado Boulder
Skills you'll gain: Computational Logic, Systems Design, Verification And Validation, Systems Analysis, Software Systems, Theoretical Computer Science, Computational Thinking, System Design and Implementation, Simulations, Programming Principles, Software Architecture, Software Design, Model Evaluation, Graph Theory, Pseudocode, Software Testing, Hardware Architecture, Software Quality Assurance, Computer Architecture, Logical Reasoning
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Clinical Trials, Clinical Data Management, Clinical Research, Case Report Forms, SAS (Software), Statistical Reporting, Data Analysis, Statistical Analysis, Informed Consent, Data Manipulation, Descriptive Statistics
Beginner · Course · 1 - 4 Weeks