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File Converters
Open tool Plain Text to RTF
Convert Plain Text into RTF locally, with explicit format controls, bounded validation, a reviewable preview when practical, and a separately named download.
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Math, Statistics & Probability
Open tool Plane Partition Number Calculator
Count unrestricted plane partitions from MacMahon's generating product.
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Creator Economy
Open tool Podcast Production Planner
Create a bounded, browser-local podcast production planner with visible assumptions, review guidance, and downloadable output.
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Chemistry
Open tool pOH Calculator
Calculate poh with guided inputs, visible equations, substituted working, and model assumptions.
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Math, Statistics & Probability
Open tool Poisson Probability Calculator
Calculate poisson probability with guided inputs, visible equations, substituted working, and model assumptions.
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Productivity & Business Ops
Open tool Policy Acknowledgement Tracker
Create a bounded, browser-local policy acknowledgement tracker with visible assumptions, review guidance, and downloadable output.
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Math, Statistics & Probability
Open tool Polygon Angle Sum Calculator
Polygon Angle Sum Calculator with visible formula, field hints, and browser-local calculation.
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Math, Statistics & Probability
Open tool Polynomial Evaluation Calculator
Calculate polynomial evaluation with guided inputs, visible equations, substituted working, and model assumptions.
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Math, Statistics & Probability
Open tool Pooled Mean Three Groups Calculator
Calculate pooled mean three groups with guided inputs, visible equations, substituted working, and model assumptions.
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Math, Statistics & Probability
Open tool Pooled Standard Deviation Calculator
Calculate pooled standard deviation with guided inputs, visible equations, substituted working, and model assumptions.
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Calculators
Open tool Portfolio Allocation Calculator
Calculate the amount assigned to one asset class from a target percentage.
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Finance & Business
Open tool Portfolio Calmar Ratio Calculator
Compare compound annualized return with matched maximum drawdown.