| Fakulteta za matematiko in fiziko | sl | Olympiads, competitions... |
| Famous Curves | de | Numbers, functions, theorems … |
| Fare matematica con Excel | en | Sites with math tools |
| Fastmarking | en | Sites with math tools |
| Federación Española de Sociedades de Profesores de Matemáticas | sp | Teachers' associations |
| Federal Resources for Educational Excellence (FREE) | en | Education-related sites |
| Federation Francaise des Jeux Mathematiques et Logiques | fr | Olympiads, competitions... |
| Femmes et mathématiques | fr | Mathematical societies |
| Femmes et sciences | fr | Mathematical societies |
| Fermat - Fazendo, exemplificando e resolvendo matematica | pt | Educational portals |
| Fersch, Klemens | de | Sites with math tools |
| Fibonacci Numbers and Golden section in Nature | en | Numbers, functions, theorems … |
| Fibonacci Numbers and the Golden Section | en | Numbers, functions, theorems … |
| FIRN Instructional Resources | en | Education-related sites |
| First-Bayes | en | Archives of math programs and training math programs |
| FISICA MATEMATICA TEX LATEX | it | TeX |
| Flanders Mathematics Olympiad | en | Olympiads, competitions... |
| Flanders Mathematics Olympiad | gl | Olympiads, competitions... |
| FLASH CARDZ 2 | en | Mathematics software |
| Flashcards for Kids | en | Mathematics and … |
| Florida Council of Teachers of Mathematics | en | Teacher-oriented sites |
| Florida Council of Teachers of Mathematics | en | Teachers' associations |
| Florida State University | en | Math servers (ftp and gopher) |
| Formatic 2000 / Mathématiques | fr | Others links |
| Formation | ru | Others links |
| FormelBaska 3 | de | Sites with math tools |
| FormelBaska | de | Sites with math tools |
| Formelinterpreter (ForInt) | de | Sites with math tools |
| Forum on physics - theme forums | ru | Mathematical societies |
| Four Branches of Trigonometry | en | Math theory |
| Fractal Movie Archive | en | Math servers (ftp and gopher) |
| Fraction Tutorial | en | Sites with math tests |
| Fractions | en | Sites with math tests |
| Free Arithmetic Worksheets | en | Methodical materials |
| Free books | ru | Methodical materials |
| Free Elimination | en | Logics, paradoxes … |
| Free Lesson Plans, WebQuests, Worksheets and Teacher Tools | en | Didactics |
| Free Lesson Plans, WebQuests, Worksheets and Teacher Tools | en | Sites offering various training techniques |
| Free Spelling, Vocabulary, and Math Worksheets! | en | Sites with math tests |
| Free Worksheets.com | en | Didactics |
| Freeware math | ru | Small selections of links |
| Freiarbeit mit Mathemac | de | Personal mathematics home pages |
| Freunde der Zahl Pi | de | History of mathematics |
| FSU Math - Math WWW VL: Education | en | Math directories |
| FSU Math - Math WWW VL: Software | en | Directories with links to mathematics software |
| FSU Math - Math WWW VL: Software | en | Sites with information on math-related Internet resources |
| FSU Math - Math WWW VL | en | Sites with fundamental information on Internet resourses related to training in math |
| Fun Brain | en | Archives of math programs and training math programs |
| Funbrain.com: Curriculum Guide | en | Education-related sites |
| Functions space complex variable | ru | Texts and documents |
| Fundacao Biblioteca Nacional | pt | Math libraries |
| Fundamental and applied mathematics | ru | Mathematical societies |
| Fundamental Theorem of Arithmetic | en | Texts and documents |
| Funktion - das Mathematikprogramm | de | Mathematics software |
| Funktionenplotter MathPlot (Shareware fur Windows 3.x/95/98) | de | Sites with math tools |
| Funktionsassistent - Mathematiksoftware zur Funktionslehre | de | Mathematics software |
| Funktionsplotter.de | de | Sites with math tools |
| FunkyPlot | de | Mathematics software |
| Funmaths Game Station - High school math games. Arcade style games bring maths to life | en | Sites with math tools |
| Future School Software | en | Mathematics software |
| Future School | en | Mathematics software |
| Fйdйration Franзaises des Jeux Mathйmatiques et Logiques | fr | Logics, paradoxes … |
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