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Equation Solver: Solve Equations, Inequalities, and Systems

Online equation solver for linear, quadratic, cubic, quartic, trigonometric, and hyperbolic equations. Solution methods include substitution, factoring, algebraic identities, completing the square, term grouping, the rational root theorem, Ferrari's method, tangent half-angle substitution, the binomial theorem, trigonometric and hyperbolic identities, logarithmic properties, functional equations, Euler's formula, and domain restrictions. Also solves systems of equations and inequalities using the interval method.
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The input recognizes synonyms for functions, such as asin, arsin, arcsin, sin^-1

Multiplication signs and parentheses are automatically added, for example 2sinx becomes 2*sin(x)

Supported functions and constants:

ln(x)natural logarithm

sin(x)sine

cos(x)cosine

tan(x)tangent

cot(x)cotangent

arcsin(x)arcsine

arccos(x)arccosine

arctan(x)arctangent

arccot(x)arccotangent

sinh(x)hyperbolic sine

cosh(x)hyperbolic cosine

tanh(x)hyperbolic tangent

coth(x)hyperbolic cotangent

sech(x)hyperbolic secant

csch(x)hyperbolic cosecant

arsinh(x)inverse hyperbolic sine

arcosh(x)inverse hyperbolic cosine

artanh(x)inverse hyperbolic tangent

arcoth(x)inverse hyperbolic cotangent

sec(x)secant

csc(x)cosecant

arcsec(x)arcsecant

arccsc(x)arccosecant

arsech(x)inverse hyperbolic secant

arcsch(x)inverse hyperbolic cosecant

|x|, abs(x)absolute value

sqrt(x), root(x)square root

exp(x)exp(x)

a+ba + b

a-ba - b

a*ba * b

a/ba / b

a^b, a**ba ^ b

sqrt7(x)sqrt[7](x)

sqrt(n,x)sqrt[n](x)

lg(x)log_10(x)

log3(x)log_3(x)

log(a,x)log_a(x)

ln^2(x), ln(x)^2ln^2 x

lambdalambda

<=leq

>=geq

pipi
alphaalpha
betabeta
sigmasigma
gammagamma
nunu
mumu
phiphi
psipsi
tautau
etaeta
rhorho
a123a_123
x_nx_n
mu11mu_11
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