Pre-calculus courses can help you learn functions, trigonometry, complex numbers, and polynomial equations. You can build skills in graphing functions, solving equations, and understanding limits, which are crucial for calculus and other advanced math topics. Many courses introduce tools like graphing calculators and software for visualizing functions, which enhance your ability to analyze mathematical concepts and apply them in various fields such as engineering, physics, and computer science.

Skills you'll gain: Restful API, Model View Controller, ASP.NET, OAuth, API Design, Web Development, Application Programming Interface (API), .NET Framework, Web Services, Authentications, Unit Testing, Back-End Web Development, C# (Programming Language), Web Applications, Object-Relational Mapping, API Testing, Authorization (Computing), Operational Databases, Cloud Computing, Computer Programming
★ 4.7 (38) · Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Test Driven Development (TDD), Unit Testing, Test Script Development, Development Testing, Software Testing, Testability, Java, Test Case
★ 3.6 (17) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Angular, Bootstrap (Front-End Framework), JavaScript Frameworks, Authentications, Web Applications, Web Design and Development, Role-Based Access Control (RBAC), Frontend Integration, Responsive Web Design, UI Components, Code Reusability, Data Validation, Software Testing, Data Management
★ 4.6 (27) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Overcoming Objections, Sales Pipelines, Consultative Selling, Account Strategy, Sales Presentation, Account Management, Sales Presentations, Storytelling, Closing (Sales), Sales Development, B2B Sales, Sales Process, Consultative Approaches, Persuasive Communication, Active Listening, Sales, Selling Techniques, Sales Territory Management, Sales Strategy, Revenue Management
Beginner · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Test Automation, Performance Testing, Software Testing, API Testing, Test Script Development, Security Testing, Continuous Integration, Test Tools, AI Security, CI/CD, Performance Stress Testing, Regression Testing, AI Integrations, Scalability, Automation, Test Case, Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Open Source Technology, Package and Software Management, Linux, Shell Script, Ubuntu, Unix Shell, Linux Administration, Operating System Administration, Bash (Scripting Language), Linux Servers, Unix, Operating Systems, Command-Line Interface, Scripting, Linux Commands, Red Hat Enterprise Linux, File Systems, Network Administration, Software Installation, System Software
★ 4.8 (13) · Intermediate · Course · 1 - 3 Months
University of Michigan
Skills you'll gain: Data Quality, Data Integrity, Data Validation, Data Collection, Data Processing, Data Preprocessing, Data Analysis, Verification And Validation, Data Access, Design Strategies
★ 5 (8) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: CI/CD, ASP.NET, Continuous Deployment, Application Deployment, Cloud Deployment, Restful API, Azure DevOps Pipelines, Software Testing, .NET Framework, Responsive Web Design, jQuery, API Design, Data Migration, Azure DevOps, Configuration Management, Data Validation, HTML and CSS, Database Application, JavaScript Frameworks, Middleware
Intermediate · Professional Certificate · 3 - 6 Months

University of Michigan
Skills you'll gain: Debugging, Unit Testing, Relational Databases, Object Oriented Programming (OOP), Data Visualization, Data Store, Web Scraping, Database Management, Scatter Plots, Data Structures, Data Manipulation, SQL, File I/O, Test Case, Integrated Development Environments, Software Testing, Python Programming, Computer Programming, Program Development, Diversity and Inclusion
★ 3.9 (15) · Intermediate · Specialization · 3 - 6 Months

Illinois Tech
Skills you'll gain: Model Evaluation, Regression Analysis, Verification And Validation, Feature Engineering, Plot (Graphics), Statistical Methods, Statistical Modeling, Scatter Plots, Data Transformation, Correlation Analysis, Statistical Analysis, R Programming, Statistical Inference, Statistical Hypothesis Testing
★ 4.9 (11) · Intermediate · Course · 1 - 4 Weeks

Whizlabs
Skills you'll gain: AWS SageMaker, AWS Kinesis, Data Integration, Data Lakes, Business Intelligence Software, Business Intelligence, Apache Hive, Apache Spark, Amazon Web Services, Extract, Transform, Load, Big Data, Apache Hadoop, Real Time Data, Applied Machine Learning, Data Processing, Data Sharing, Serverless Computing, Data Transformation
★ 4.4 (10) · Intermediate · Course · 1 - 4 Weeks

Universidad Nacional Autónoma de México
Skills you'll gain: Matplotlib, Extract, Transform, Load, Plot (Graphics), Pandas (Python Package), NumPy, Exploratory Data Analysis, Time Series Analysis and Forecasting, Data Visualization Software, Data Science, Package and Software Management, Graphing, Data Analysis, Data Import/Export, Python Programming, Data Manipulation, Numerical Analysis
★ 3.8 (20) · Beginner · Course · 1 - 3 Months