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[Utility & Helpers](/categories/utility) 4. / 5. rhossis/mathfinance ActiveLibrary[Utility & Helpers](/categories/utility) rhossis/mathfinance =================== Package for financial math functions v4.0.2(1y ago)11BSD-3-ClausePHPPHP >=7.4.0 Since May 27Pushed 1y ago1 watchersCompare [ Source](https://github.com/rhossis/mathfinance)[ Packagist](https://packagist.org/packages/rhossis/mathfinance)[ Docs](https://github.com/rhossis/mathfinance)[ RSS](/packages/rhossis-mathfinance/feed)WikiDiscussions main Synced today READMEChangelogDependencies (1)Versions (5)Used By (0) ๐Ÿงฎ math ====== [](#-math) Package for financial math functions ๐Ÿ“˜ Description ------------- [](#-description) This package contains assorted methods for fixed income instrument calculations, enabling developers to perform accurate and reliable financial math operations such as interest calculations, depreciation, bond valuation, and more. --- ๐Ÿ’พ Installing ------------ [](#-installing) ### ๐Ÿ“ฆ Install application via Composer [](#-install-application-via-composer) ``` require "rhossis/mathfinance" : "^4.0.0" ``` --- ๐Ÿš€ Usage ------- [](#-usage) ### ๐Ÿ“– Overview [](#-overview) The math class provides several financial math functions. These methods largely mirror Microsoft Excel functions and extend the legacy PEAR math classes. The package also comes with a bond interest calculation class, which is compliant with interest calculations used in various exchanges worldwide, such as Central Bank of Kenyas 364 days calculation. --- ### ๐Ÿงฑ Named Constants [](#-named-constants) ``` // Precision level define('MATHFINANCE_PRECISION', 1E-6); // Payment types define('MATHFINANCE_PAYEND', 0); define('MATHFINANCE_PAYBEGIN', 1); // Day count methods define('MATHFINANCE_COUNTNASD', 0); define('MATHFINANCE_COUNTACTUALACTUAL', 1); define('MATHFINANCE_COUNTACTUAL360', 2); define('MATHFINANCE_COUNTACTUAL365', 3); define('MATHFINANCE_COUNTEUROPEAN', 4); // Extended day count methods define('MATHFINANCE_COUNTNEW_GERMAN', 1); define('MATHFINANCE_COUNTNEW_GERMANSPEC', 2); define('MATHFINANCE_COUNTNEW_ENGLISH', 3); define('MATHFINANCE_COUNTNEW_FRENCH', 4); define('MATHFINANCE_COUNTNEW_US', 5); define('MATHFINANCE_COUNTNEW_ISMAYEAR', 6); define('MATHFINANCE_COUNTNEW_ISMA99N', 7); define('MATHFINANCE_COUNTNEW_ISMA99U', 8); // Error flags define('MATHFINANCE_ERROR_BADDCM', 1); define('MATHFINANCE_ERROR_BADDATES', 2); // Accrued interest calculation constants define('MATHFINANCE_SWX_BOND_AI_GERMAN', 1); define('MATHFINANCE_SWX_BOND_AI_SPEC_GERMAN', 2); define('MATHFINANCE_SWX_BOND_AI_ENGLISH', 3); define('MATHFINANCE_SWX_BOND_AI_FRENCH', 4); define('MATHFINANCE_SWX_BOND_AI_US', 5); define('MATHFINANCE_SWX_BOND_AI_ISMA_YEAR', 6); define('MATHFINANCE_SWX_BOND_AI_ISMA_99N', 7); define('MATHFINANCE_SWX_BOND_AI_ISMA_99U', 8); define('MATHFINANCE_SWX_BOND_AI_KENYA', 9); define('MATHFINANCE_SWX_BOND_AI_CBK_KENYA', 10); ``` --- ### ๐Ÿงฎ Using the Math Package [](#-using-the-math-package) #### ๐Ÿ” Calculating Accrued Interest on Bonds [](#-calculating-accrued-interest-on-bonds) ``` use rhossis\mathfinance\MathFinance\abstractclass\Swx\BondAccruedInterest; $d1M1Y1 = '2013-12-31'; $d2M2Y2 = '2014-06-30'; $d3M3Y3 = '2014-12-31'; $fValue = 1; $maturityDate = '2014-12-31'; $bondObj = new BondAccruedInterest(); $dCM = MATHFINANCE_SWX_BOND_AI_SPEC_GERMAN; $interestFactor = $bondObj->accruedInterestFactor($dCM, $d1M1Y1, $d2M2Y2, $d3M3Y3, $fValue, $maturityDate); ``` --- ### ๐Ÿ“ˆ Bond Interest Calculation Guide [](#-bond-interest-calculation-guide) > A detailed guide to the formulas and logic for computing bond interest for fixed income instruments including actual/actual, 30/360, and RFR-based methods. [๐Ÿ“˜ View Full Guide](BOND_INTEREST_CALCULATION_GUIDE.md) --- ### ๐Ÿ”ข Computing Financial Math [](#-computing-financial-math) ``` $mfo = new rhossis\mathfinance\MathFinance(); $mfo->effectiveRate($nominal_rate, $npery); $mfo->nominalRate($effect_rate, $npery); $mfo->presentValue($rate, $nper, $pmt, $fv = 0, $type = 0); $mfo->futureValue($rate, $nper, $pmt, $pv = 0, $type = 0); $mfo->payment($rate, $nper, $pv, $fv = 0, $type = 0); $mfo->periods($rate, $pmt, $pv, $fv = 0, $type = 0); $mfo->rate($nper, $pmt, $pv, $fv = 0, $type = 0, $guess = 0.1); $mfo->interestPayment($rate, $per, $nper, $pv, $fv = 0, $type = 0); $mfo->principalPayment($rate, $per, $nper, $pv, $fv = 0, $type = 0); $mfo->interestAndPrincipal($rate, $per, $nper, $pv, $fv, $type); $mfo->netPresentValue($rate, $values); $mfo->internalRateOfReturn($values, $guess = 0.1); $mfo->modifiedInternalRateOfReturn($values, $finance_rate, $reinvest_rate); $mfo->daysDifference($date1, $date2, $basis); $mfo->daysPerYear($year, $basis); $mfo->tBillYield($settlement, $maturity, $pr); $mfo->tBillPrice($settlement, $maturity, $discount); $mfo->tBillEquivalentYield($settlement, $maturity, $discount); $mfo->discountRate($settlement, $maturity, $pr, $redemption, $basis = 0); $mfo->priceDiscount($settlement, $maturity, $discount, $redemption, $basis = 0); $mfo->depreciationFixedDeclining($cost, $salvage, $life, $period, $month = 12); $mfo->depreciationStraightLine($cost, $salvage, $life); ``` --- ### ๐Ÿงช Testing [](#-testing) Unit tests are provided using PHPUnit. --- ### ๐Ÿค Contribute [](#-contribute) - Fork the project :) - Email \[@rhossis\]. - Contributors will be credited in the project. --- ### โš–๏ธ License [](#๏ธ-license) **BSD-3-Clause** ### Health Score 25 โ€” LowBetter than 35% of packages Maintenance46 Moderate activity, may be stable Popularity3 Limited adoption so far Community7 Small or concentrated contributor base Maturity40 Maturing project, gaining track record Bus Factor1 Top contributor holds 100% of commits โ€” single point of failure How is this calculated?**Maintenance (25%)** โ€” Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** โ€” Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** โ€” Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** โ€” Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~0 days Total 3 Last Release 402d ago ### Community Maintainers ![](https://www.gravatar.com/avatar/09103ea1b91963aa5f73d64473a315264746c96d899cd871efdc332d127bdee0?d=identicon)[rhossis](/maintainers/rhossis) --- Top Contributors [![cymapgt](https://avatars.githubusercontent.com/u/12482626?v=4)](https://github.com/cymapgt "cymapgt (4 commits)") --- Tags mathfinance ### Code Quality TestsPHPUnit ### Embed Badge ![Health badge](/badges/rhossis-mathfinance/health.svg) ``` [![Health](https://phpackages.com/badges/rhossis-mathfinance/health.svg)](https://phpackages.com/packages/rhossis-mathfinance) ``` ### Alternatives [brick/math Arbitrary-precision arithmetic library 2.2k548.2M430](/packages/brick-math)[markrogoyski/math-php Math Library for PHP. 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