Wolfram|Alpha

Mathematics

Elementary Mathematics ››

do basic arithmetic
125 + 375
do exact arithmetic with fractions
1/4 * (4 - 1/2)

Numbers ››

compute a decimal approximation of a specified number of digits
pi to 1000 digits
convert a decimal number to another base
219 to binary

Plotting & Graphics ››

plot a function
plot x^3 - 6x^2 + 4x + 12
plot a region satisfying multiple inequalities
plot x^2+y^2<1 and y>x

Algebra ››

solve an equation
x^3 - 4x^2 + 6x - 24 = 0
factor a polynomial
factor 2x^5 - 19x^4 + 58x^3 - 67x^2 + 56x - 48
compute eigenvalues and eigenvectors of a matrix
eigenvalues {{4,1},{2,-1}}

Calculus & Analysis ››

compute an integral
integrate sin x dx from x=0 to pi
calculate a derivative
derivative of x^4 sin x
solve an ordinary differential equation
y'' + y = 0

Geometry ››

compute properties of a geometric figure
annulus, inner radius=2, outer radius=5
plot a conic section and identify its type
2x^2 - 3xy + 4y^2 + 6x - 3y - 4 = 0
compute properties of a polyhedron
dodecahedron

Number Theory ››

compute a prime factorization
factor 70560
solve a Diophantine equation
solve 3x+4y=5 over the integers

Discrete Mathematics ››

compute a possible formula and continuation for a sequence
5, 14, 23, 32, 41, ...
analyze a graph specified by adjacency rules
1->2, 2->3, 3->1, 3->4, 4->1
solve a recurrence
f(n)=f(n-1)+f(n-2), f(1)=1, f(2)=2

Applied Mathematics ››

minimize or maximize a function
maximize x(1-x)e^x
numerically integrate functions that cannot be integrated symbolically
integrate sin(cos x) from x=0 to 1

Logic & Set Theory ››

compute a truth table
P && (Q || R)
generate a Venn diagram
(complement S) intersect (A union B)

Mathematical Functions ››

do computations with special functions
d/dx Si(x)^2
do computations with number-theoretic functions
phi(110)
find representations for a function
gamma(x) integral representation

Advanced Mathematics ››

compute properties of a function of a complex variable (use the variable <i>z</i>)
e^z
do vector analysis computations
div (x^3 y, y^3 z, z^3 x)
compute properties of a knot
8_1 knot

Mathematical Definitions ››

find information about a math concept
tangram
get a brief definition
basic definition of prime number

Famous Math Problems ››

get information about a mathematical conjecture
Riemann Hypothesis
get historical information about a theorem
Fermat's little theorem

Continued Fractions ››

find the continued fraction representation of a number
continued fraction pi
find definitions of continued fraction terminology
what is a regular continued fraction
find continued fraction papers by author
continued fraction papers by Stern