Section II · 4 tools
Calculators.
Mortgages, loans, interest, taxes, retirement, health, math, and the rest. Every tool computes in arbitrary precision and links its formula in plain language.
4 calculators in general
Uk Coin Weight Calculator
Find the total weight of any UK coin combination using official Royal Mint weights for all denominations from 1p to £2.
Gpa Calculator (Semester)
Calculate semester GPA by entering course grades and credit hours. Get instant results using the standard weighted average formula used by colleges.
Luhn Algorithm Calculator
Validate or generate check digits for credit cards, NPI numbers, and other identification numbers using the Luhn mod 10 algorithm.
Cyclomatic Complexity Calculator
Calculate cyclomatic complexity using V(G) = E − N + 2P or the simplified decision-point method. Measure code paths, plan testing, and assess maintainability risk.