System of Equations Matrix Solver Select Matrix Size: 2×2 3×3 Coefficient Matrix (A) and Constant Vector (B) Enter the coefficients for your system of linear equations. The system is represented as Ax = B. x + y + z =…

California Temporary Spousal Support Calculator Use this calculator to estimate temporary spousal support in California, often referred to as “guideline” support. This calculation is a simplification based on common formulas used by courts for temporary orders and does not account…

Tile Square Footage & Quantity Calculator Room Length (feet): Room Width (feet): Single Tile Length (inches): Single Tile Width (inches): Waste Percentage (%): Cost Per Tile ($): Calculate Tiles Calculation Results: Total Area to Tile: — sq ft Area of…

Spy Mission Expected Value Calculator Estimate the potential strategic value of a covert operation by factoring in success probability, information value, mission costs, and failure penalties. Mission Success Probability (%): Information Value (Strategic Value Units): Mission Cost (Strategic Value Units):…

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House Square Footage Calculator Use this calculator to estimate the total square footage of your house or individual rooms. Simply enter the length and width of each area in feet, and the calculator will provide the square footage for each…

Concrete Volume Calculator Area (Square Feet): Depth/Thickness (Inches): Calculate Concrete function calculateConcrete() { var areaSqFt = parseFloat(document.getElementById(‘areaSqFt’).value); var depthInches = parseFloat(document.getElementById(‘depthInches’).value); var resultDiv = document.getElementById(‘concreteResult’); if (isNaN(areaSqFt) || isNaN(depthInches) || areaSqFt <= 0 || depthInches <= 0) { resultDiv.innerHTML =…

Solo 401(k) Maximum Contribution Calculator Your Net Self-Employment Income (Gross Income – Business Expenses): Your Age: Calculate Max Contribution Your maximum Solo 401(k) contribution will appear here. function calculateSolo401k() { var netSelfEmploymentIncome = document.getElementById(“netSelfEmploymentIncome”).value; var age = document.getElementById(“age”).value; var resultDiv…

Cost of Living Index Comparison Calculator Your Current Annual Salary ($): Current City’s Cost of Living Index (e.g., 100 for national average): Target City’s Cost of Living Index (e.g., 130 for expensive, 80 for cheaper): Calculate Equivalent Salary Calculation Results:…

CNC Speed and Feed Calculator Surface Speed (SFM): (Surface Feet per Minute – consult tool manufacturer) Tool Diameter (inches): (Diameter of the cutting tool) Number of Flutes: (Number of cutting edges on the tool) Chip Load (IPT): (Inches Per Tooth…