1.TheAlgorithms / CCollection of various algorithms in mathematics, machine learning, computer science, physics, etc implemented in C for educational purposes.algorithmsdata-structuresdatastructurescalgorithm-challengesalgorithm-competitions+13 moreCGPL-3.023K total4.8K forks+116 starsfrom 22,470 · score 4.76
2.erincatto / box2dBox2D is a 2D physics engine for gamesCMIT10K total1.8K forks+84 starsfrom 10,379 · score 4.44
3.datoviz / datoviz⚡ Datoviz: high-performance GPU rendering for scientific data visualizationvisualizationgraphicsdata-visualizationscientific-visualizationgpuvulkan+6 moreCMIT824 total43 forks+13 starsfrom 812 · score 2.64
4.hypre-space / hypreParallel solvers for sparse linear systems featuring multigrid methods.math-physicslibraryhpcradiussCOther license875 total264 forks+12 starsfrom 863 · score 2.56
5.OSGeo / grassGRASS - free and open-source geospatial processing enginegrass-gisgeospatialgeospatial-analysisrastervectortimeseries-analysis+14 moreCOther license1.2K total458 forks+11 starsfrom 1,173 · score 2.48
6.ericstoneking / 42Simulation for spacecraft attitude control system analysis and design CNo license467 total114 forks+11 starsfrom 457 · score 2.48
7.flame / blisBLAS-like Library Instantiation Software Frameworkblisblasblas-librarieslinear-algebralinear-algebra-librarymatrix-multiplication+8 moreCOther license2.7K total437 forks+10 starsfrom 2,688 · score 2.40
8.codeplea / tinyexprtiny recursive descent expression parser, compiler, and evaluation engine for math expressionsccalculatorexpression-evaluatormathparserrecursive-descent+2 moreCZLIB1.9K total313 forks+8 starsfrom 1,931 · score 2.20
9.libtom / libtommathLibTomMath is a free open source portable number theoretic multiple-precision integer library written entirely in C.mpilibtommathcmathmulti-precisionCOther license811 total225 forks+8 starsfrom 803 · score 2.20
10.slembcke / Chipmunk2DA fast and lightweight 2D game physics library.c2d2d-physicsrigid-bodyCMIT2.4K total364 forks+7 starsfrom 2,404 · score 2.08
11.CEED / libCEEDCEED Library: Code for Efficient Extensible Discretizationsceedhigh-orderexascale-computingapiecphigh-performance-computing+5 moreCBSD-2-CLAUSE273 total84 forks+6 starsfrom 267 · score 1.95
12.jarun / bcal:1234: Bits, bytes and general-purpose calculatorstoragestorage-unit-convertercommand-linestandaloneterminalcalculator+6 moreCGPL-3.0708 total40 forks+5 starsfrom 702 · score 1.79
13.samtools / htslibC library for high-throughput sequencing data formatshtslibbioinformaticssambamcramvcf+2 moreCOther license957 total482 forks+4 starsfrom 953 · score 1.61
14.brandon-rhodes / pyephemScientific-grade astronomy routines for PythonCOther license900 total132 forks+4 starsfrom 896 · score 1.61
15.MmgTools / mmgopen source software for bidimensional and tridimensional remeshingmeshmesh-adaptationanisotropic-mesh-adaptationisotropic-mesh-adaptationmesh-quality-improvementsurface-improvement+11 moreCOther license491 total139 forks+3 starsfrom 488 · score 1.39
16.ebassi / grapheneA thin layer of graphic data typesgraphics-libraryvectortransformationsmatrix3d-transformationsc+4 moreCOther license442 total84 forks+3 starsfrom 439 · score 1.39
17.libMesh / libmeshlibMesh github repositoryfemfinite-element-methodssimulationparallelamrfinite-element-analysis+2 moreCLGPL-2.1761 total310 forks+2 starsfrom 759 · score 1.10
18.blinry / gishOpen Source version of the award-winning physics platformerCOther license357 total68 forks+2 starsfrom 355 · score 1.10
19.StanfordVL / GibsonEnvGibson Environments: Real-World Perception for Embodied Agentscomputer-visionroboticssimulatorsim2realdeep-learningdeep-reinforcement-learning+4 moreCMIT948 total152 forks+1 starsfrom 947 · score 0.69