Iris Donovan builds clear, reliable calculators that help learners test ideas and see numbers come alive. With hands-on experience from internships and coursework, she focuses on turning textbook formulas into interactive tools that teach concepts step by step.
Over the past three years, Iris has prototyped small and medium-sized projects: amortization visualizers, savings goal trackers, APR/APY comparators, and classroom-ready investment return demos. She validates formulas against edge cases, adds plain-language tooltips, and documents assumptions so users know exactly what each slider and input means.
Her writing emphasizes concise explanations, checklists for setup, and side-by-side examples that reveal cause and effect. She believes that a good calculator should teach while it computes—making confidence grow with each input change.
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Table of contents
Notice
This topic falls outside Iris’s expertise.
I focus on finance education tools: interest and amortization, APR/APY and rate conversions, savings and investment growth, retirement accumulation basics, inflation adjustments, and introductory loan metrics for learning purposes.
What I can help you build
Interest and amortization calculators: loan schedules, payoff timelines, and rate sensitivity.
APR vs APY comparators and nominal-to-effective rate conversions.
Savings and investment growth (simple vs compound), with contribution schedules.
Retirement accumulation starters with clear assumptions and unit notes.
Inflation and real vs nominal comparisons, plus purchasing power demos.
Education-only loan metrics: LTV, DTI, and DSCR intros.
Where to learn about Digital SAT scoring
Use College Board's official materials and Bluebook app documentation for scoring methods.
Consult reputable test-prep providers for scaling walkthroughs and practice conversions.
If you need a finance calculator, tell me your goal, inputs, and required outputs, and I will provide formulas, variable legends, a worked example, and edge-case notes.
Frequently Asked Questions
Can you help with a Digital SAT Score Calculator?
This topic falls outside Iris’s expertise; I specialize in finance education tools.
What types of calculators do you build?
Interest and amortization schedules, APR/APY comparators, savings and investment growth, retirement basics, inflation adjustments, and education-focused loan metrics.
Can you convert raw SAT answers to scaled scores?
I’m not the right resource for SAT scoring; please refer to College Board’s official materials or reputable prep platforms.
Can you outline an amortization calculator instead?
Yes—share your inputs and outputs, and I’ll provide formulas, variables with units, a worked example, and edge-case checks.
Do you cover APR versus APY?
Yes—I can define both, show the exact formulas, typical ranges, and quick validation examples.
Where should I look for Digital SAT scoring guidance?
College Board resources, official practice tests, and recognized test-prep providers are the best sources.
How do I request a finance calculator from you?
Provide the goal, input list with units, compounding or period alignment, and desired outputs; I’ll return clear formulas, validation rules, and sample results.
