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discrete mathematics : Math Help
summation of ceil and floor function
sequences-and-series
elementary-number-theory
algorithms
summation
computational-mathematics
Updated February 19, 2019 11:20 AM
3
answers
758
views
1
votes
Prove $7\mid x^2+y^2$ iff $7\mid x$ and $7\mid y$
elementary-number-theory
discrete-mathematics
modular-arithmetic
divisibility
Updated February 19, 2019 10:20 AM
6
answers
143
views
5
votes
Probability and independence
probability
discrete-mathematics
Updated February 19, 2019 07:20 AM
2
answers
338
views
1
votes
Give a formulae for the generalalized element $A_{i,j}$
linear-algebra
numerical-methods
numerical-linear-algebra
computational-mathematics
Updated February 19, 2019 07:20 AM
0
answers
6
views
0
votes
Find a simplest proposition that is logically equivalent to ¬p ↔ ¬q (don't need a solution,need explanation).
discrete-mathematics
Updated February 19, 2019 04:20 AM
1
answers
10
views
0
votes
Standard Deviation of the random number x
probability
discrete-mathematics
standard-deviation
Updated February 19, 2019 02:20 AM
0
answers
8
views
0
votes
Boolean expression simplification using 3 variables
discrete-mathematics
logic
propositional-calculus
boolean-algebra
Updated February 19, 2019 01:20 AM
0
answers
5
views
0
votes
How to determine if a relation is an equivalence relation?
discrete-mathematics
education
Updated February 19, 2019 00:20 AM
3
answers
14
views
0
votes
The number of $f \circ f=f $
discrete-mathematics
combinatorial-number-theory
Updated February 18, 2019 17:20 PM
2
answers
47
views
2
votes
Existence of a basis in constructive vector spaces
vector-spaces
computability
axiom-of-choice
constructive-mathematics
Updated February 18, 2019 15:20 PM
1
answers
170
views
3
votes
Constructing a graph with radius two.
combinatorics
discrete-mathematics
graph-theory
geometric-construction
Updated February 18, 2019 13:20 PM
1
answers
10
views
2
votes
Proofs using Algebraic Axioms
abstract-algebra
discrete-mathematics
proof-writing
Updated February 18, 2019 13:20 PM
1
answers
12
views
0
votes
Gcd is a Regular Language
discrete-mathematics
computer-science
automata
Updated February 18, 2019 07:20 AM
0
answers
13
views
1
votes
prove whether ∃x∀yP(x, y) logically implies ∀y∃xP(x, y) or not.
discrete-mathematics
quantifiers
Updated February 18, 2019 04:20 AM
1
answers
15
views
0
votes
Principle of I/E: In how many ways can eight cakes be distributed among four kids if every kid receives at least one cake?
combinatorics
discrete-mathematics
inclusion-exclusion
Updated February 18, 2019 02:20 AM
0
answers
13
views
0
votes
How to check the dimension of a given set in $\mathbb R^n$?
linear-algebra
dimension-theory
discrete-geometry
Updated February 17, 2019 22:20 PM
0
answers
19
views
0
votes
Principle of I/E exercise
discrete-mathematics
Updated February 17, 2019 19:20 PM
1
answers
9
views
0
votes
A couple of questions regarding modulo calculation, f. ex. $342342^{100} \mod 5$
discrete-mathematics
modular-arithmetic
Updated February 17, 2019 14:20 PM
1
answers
10
views
0
votes
Evaluate $\sum_{k=1}^n\log(x ^ {k/(2+1)} )$
discrete-mathematics
summation
Updated February 17, 2019 05:20 AM
0
answers
4
views
0
votes
Breaking smallest grammar problem into subproblems by looking at irreducible start-rule cuts.
discrete-mathematics
algorithms
computer-science
formal-languages
context-free-grammar
Updated February 17, 2019 05:20 AM
0
answers
5
views
0
votes
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