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Deadline Buffer CalculatorCalculate remaining buffer days before a deadline.Score 38lineLinear Equation CalculatorCalculate slope, intercept, and value for a linear equation y = mx + b.Score 38lineDeadline CalculatorEstimate deadline offset from start day, duration, review buffer, and weekend/holiday adjustment.Score 38lineKids Number Line CalculatorPractice addition jumps on a number line with visual movement and guided step explanations.Score 38lineAssignment Deadline CalculatorEstimate assignment schedule from work hours, days available, and revision buffer.Score 30lineElectron Transition Energy CalculatorCalculate electron transition energy and photon wavelength for hydrogen-like transitions.Score 28spectrallineMonthly Savings CalculatorCalculate monthly savings needed to hit a target by a deadline.Score 22lineMatrix Addition CalculatorAdd two 2x2 matrices entry by entry.Score 22lineMatrix Multiplication CalculatorMultiply two 2x2 matrices.Score 22lineInverse Matrix CalculatorCalculate inverse entries for a 2x2 matrix.Score 22lineEquation SolverSolve a linear equation of the form ax + b = c.Score 14lineSystem of Equations CalculatorSolve a 2x2 linear system a1x + b1y = c1 and a2x + b2y = c2.Score 14lineDeterminant CalculatorCalculate the determinant of a 2x2 matrix.Score 14lineNotice Period CalculatorEstimate notice-period end offset using calendar days, working-day adjustment, and handover buffer.Score 14lineCalorie Deficit CalculatorEstimate weeks needed for a target weight loss from daily calorie deficit.Score 12lineDays to Weeks CalculatorConvert days into weeks and months.Score 12lineTime to Fill CalculatorCalculate average time to fill open roles from total vacancy days and filled positions.Score 12linePerimeter CalculatorCalculate perimeter or circumference for rectangles, triangles, and circles.Score 12lineMatrix CalculatorCalculate determinant, trace, and inverse determinant for a 2x2 matrix.Score 12lineVector CalculatorCalculate vector magnitude, dot product, and component sums for 3D vectors.Score 12line