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.

Duke University
Skills you'll gain: Containerization, CI/CD, Docker (Software), DevOps, Jenkins, Application Deployment, Continuous Integration, Rust (Programming Language), Prometheus (Software), Continuous Delivery, System Monitoring, JSON, Scripting, Command-Line Interface, Continuous Monitoring, Automation, System Programming, Software Testing, GitHub
★ 4.2 (18) · Intermediate · Course · 1 - 4 Weeks

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

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

Skills you'll gain: Cucumber (Software), API Testing, Gherkin (Scripting Language), Behavior-Driven Development, JSON, Restful API, Apache Maven, Application Programming Interface (API), Test Tools, Test Case, Test Planning, Software Testing, Test Engineering, Test Script Development, Security Testing, Test Automation, Code Coverage, Authentications, Java Programming, Java
★ 4.9 (47) · Beginner · Specialization · 1 - 3 Months

L&T EduTech
Skills you'll gain: Construction Engineering, Construction, Civil Engineering, Structural Engineering, Laboratory Research, Engineering Practices, Laboratory Testing, General Construction and Construction Labor, Structural Analysis, Analytical Testing, Planning
★ 4.7 (10) · Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Amazon S3, Amazon Web Services, SQL, Extract, Transform, Load, Data Quality, Cloud Engineering, Data Pipelines, Version Control, Data Modeling, Data Storage, Cloud Storage, Git (Version Control System), Data Management, Query Languages, Data Storage Technologies, Data Processing, Cloud Security, AWS Identity and Access Management (IAM), Data Security, Big Data
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Dataflow, Real Time Data, Data Pipelines, Data Transformation, Data Integration, Data Processing, Extract, Transform, Load, Power BI, PySpark, Apache Spark, Data Quality, Data Store, Data Governance, Analytics
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JSON, API Testing, Restful API, Software Quality Assurance, Software Engineering, Application Programming Interface (API), Test Script Development, Java Programming, Java, Data Mapping, Software Testing, Test Case, Web Services
★ 4.6 (20) · Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Sprint Planning, Work Breakdown Structure, Jira (Software), Dashboard, Sprint Retrospectives, User Story, Verification And Validation, Quality Assurance, Issue Tracking, Software Testing, Data Visualization, Test Planning, Workflow Management, Project Management, Data-Driven Decision-Making, Continuous Improvement Process, Kanban Principles, Agile Methodology, Capacity Planning, Root Cause Analysis
★ 3.1 (7) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: SQL Server Integration Services (SSIS), Extract, Transform, Load, Data Warehousing, Data Transformation, Data Manipulation, Data Analysis, Microsoft SQL Servers, Data Integration, Data Mining, Advanced Analytics, Pivot Tables And Charts, Data Processing, SQL, Dataflow, Workflow Management
★ 4.6 (17) · Mixed · Course · 1 - 3 Months

Duke University
Skills you'll gain: Databricks, Model Deployment, Generative AI, Data Lakes, Extract, Transform, Load, MLOps (Machine Learning Operations), Data Transformation, LLM Application, Data Pipelines, Hugging Face, Large Language Modeling, Apache Spark, Responsible AI, Analytics, Data Analysis, Data Processing, Data Science, Machine Learning
★ 3.9 (12) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Operating System Administration, Local Area Networks, Software Installation, Command-Line Interface, Microsoft Windows, System Configuration, Systems Administration, TCP/IP, Linux Administration, Linux, General Networking, Patch Management, Operating Systems, User Accounts, Network Routers, System Monitoring, Network Troubleshooting, Mac OS, Identity and Access Management, Network Security
★ 5 (9) · Intermediate · Course · 1 - 3 Months