Geodesic

Preface
p. 5-6
Academician Blagovest Sendov (1932 – 2020)
p. 9-21
A glance at the best results of Blagovest Sendov and Hristo Sendov
p. 22-25
Chavdar Lozanov (1946 – 2020)
p. 26-27
It is not about “brain drain”, it is about “brain gain” – 20 years High School Institute of Mathematics and Informatics
p. 31-47
Stefan Dodunekov’s 75th birthday
p. 48-57
75 years from the birth of Borislav Bojanov
p. 58-62
Academicians and corresponding members of the Bulgarian Academy of Sciences having jubilee in 2019: Academician Stanimir Troyanski, Corresponding Member Ivan Dimovski and Corresponding Member Emil Horozov
p. 63-74
The Indian mathematician Ramanujan
p. 75-85
A Diophantine transport problem from 2016 and its possible solution from 1903
p. 89-113
Mathematical methods in automatic speech recognition
p. 114-122
Bulgarian platform for competitions in informatics
p. 123-130
Using entropy of categorical data for clustering
p. 133-136
Multi-component informatization model for the successful transformation of the educational process
p. 152-158
“Hot releases” in learning management systems and learning content management systems
p. 137-143
Verification of user identity and data security in the context of LMS and LCMS
p. 144-151
Towards personalized content observation in an ancient history virtual museum
p. 159-166
About OpenMP and some combinatorial algorithms
p. 167-172
On the extension of a partial solution of d spreads to a parallelism
p. 173-177
Teaching category theory to undergraduates
p. 181-189
Diagnostic assessment tools for determining the level of learners’ fraction skills
p. 190-197
Geodetic tasks in programming training courses
p. 198-206
IT lab and museum in the classroom
p. 207-212
LaTeX typesetting training in financial mathematics at “Angel Kanchev” University of Ruse
p. 213-219
The use of auxiliary files in the online competition “VIVA Mathematics with a Computer”
p. 220-228
On students’ achievements assessment in Chernorizec Hrabar Tournament and TIMSS
p. 229-233
Locus of the centroids of the equilateral triangles inscribed in a parabola
p. 234-238
Models of golden rectangles
p. 239-245
The “Education with science” program
p. 249-260
Creating and using of digital resources in mathematical training
p. 263-264
Data analysis and graphics using software
p. 265-268
Studying stereometry with dynamic constructions
p. 269-274