r/askmath is a subreddit with 239k members. The community frequently discusses math, struggling, algebra, geometry, and looking for, and they frequently recommend/review textbooks, statistics book, and website recommendations, and the most common flair used is geometry, algebra, calculus, arithmetic, and probability.
This subreddit is for questions of a mathematical nature. Please read the subreddit rules below before posting.
Popular Topics in r/askmath
#1
Math
129 posts
#2
Struggling
85 posts
#3
Algebra
33 posts
#4
Geometry
30 posts
#5
Looking For
28 posts
#6
Help
27 posts
#7
Calculus
25 posts
#8
Probability
21 posts
#9
Integral
17 posts
#10
Question
14 posts
Products Discussed in r/askmath
Textbooks
2 reviews
#1
Karlin and Taylor
3.0★ from 1 review
#2
Gut
4.0★ from 1 review
Statistics Book
1 review
#1
Freedman, Pisani, and Purves
4.0★ from 1 review
Website Recommendations
1 review
#1
Wolfram Alpha
4.0★ from 1 review
Flair Used in r/askmath
#1
Geometry
: "Found on Facebook. not enough info?"
32 posts
#2
Algebra
: "√x = -√x. Find x."
28 posts
#3
Calculus
: "Why use radian in calculus?"
25 posts
#4
Arithmetic
: "Round to the nearest Integer"
17 posts
#5
Probability
: "How probabilisticly rare is this ?"
14 posts
#6
Functions
: "How does one solve this?"
13 posts
#7
Number Theory
: "what actually is "i"?"
11 posts
#8
Logic
: "Which base actually makes the much sense?"
9 posts
#9
Analysis
: "Weierstrass nowhere differentiable proof from OCW 18.100A"
7 posts
#10
Discrete Math
: "What is the correct answer to this question?"
6 posts
Member Growth in r/askmath
Yearly
+39k members(19.8%)
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Last updated: July 1, 2026