Perl Subroutines: Build a GPA Converter — PickAClass
⏱ 2h 54m 📚 29 lessons

Perl Subroutines: Build a GPA Converter

Learn to apply fundamental Perl subroutines and conditional logic to accurately convert academic letter grades into GPA scores.

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About this course

Translating academic performance from letter grades to a standardized GPA is a common task in various applications, and mastering this conversion is a foundational programming skill. This course will guide you through the process of developing a practical Perl solution that efficiently converts letter grades into their corresponding GPA values using subroutines and essential control structures. You will gain hands-on experience in defining functions, passing data, and handling complex decision-making within your code. What you'll learn: * Understand core Perl syntax for variables, data types, and operators. * Define and call Perl subroutines to encapsulate reusable logic. * Implement conditional statements (if/elsif/else) for precise grade-to-GPA mapping. * Pass parameters to subroutines and manage return values effectively. * Apply best practices for writing clear, maintainable, and robust subroutine code. * Practice basic testing strategies to ensure your GPA conversion logic is accurate. * Explore methods for handling edge cases and invalid input in your conversion function. The course begins with Perl fundamentals, progresses to defining and utilizing subroutines, then focuses on implementing the grade-to-GPA conversion logic, and concludes with testing and refining your solution. This course is designed for absolute beginners with no prior programming experience, providing a step-by-step guide to building your first practical Perl application. Start building your foundational Perl programming skills today.

What you'll get

  • 📜 Certificate of completion
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  • Short & focused
    2h 54m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Perl Subroutines: Build a GPA Converter
Skills demonstrated
Behavioral pattern analysis
Foundational
1.2 hrs
Decision-architecture frameworks
Proficient
1.4 hrs
A/B test design
Proficient
1.7 hrs
Behavioral copywriting
Advanced
1.9 hrs
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PickAClass — Name Surname
Perl Subroutines: Build a GPA Converter
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
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pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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