Exponential & Logarithmic Equations Calculator
Compute advanced algebra with our exponential logarithmic equations calculator. Features a seamless exponential to logarithmic form calculator, high-precision online logarithmic calculator, log scientific calculator, scientific calculator with trigonometric functions, versatile logarithmic formula calculator, and a dedicated recurring decimals as fractions calculator.
b^y=x Exponential to Logarithmic Form Calculator
Convert between exponential form b^y = x and logarithmic form log_b(x) = y.
log_b(x) Logarithmic Formula Calculator & Solver
Evaluate any arbitrary base log, natural log ln, or solve b^x = d directly.
Logarithmic Product & Quotient Rules
• log_b(M · N) = log_b(M) + log_b(N)
• log_b(M / N) = log_b(M) − log_b(N)
• log_b(M^k) = k · log_b(M)
Change of Base Formula
log_b(x) = ln(x) / ln(b) = log₁₀(x) / log₁₀(b)
This essential identity allows any handheld or online scientific calculator to solve arbitrary base logarithms with standard natural log functions.
Recurring Decimals as Fractions
Any repeating decimal represents a rational number. Multiplying the equation by 10^p cancels out the infinite repeating tail, allowing standard fraction reduction through Euclidean greatest common divisor (GCD).
Frequently Asked Questions
How do you solve exponential logarithmic equations?
To solve equations where the variable is trapped in the exponent (like 2^x = 50), isolate the exponential expression, take the natural logarithm or common log of both sides, apply the power rule ln(2^x) = x · ln(2), and divide to isolate x = ln(50) / ln(2) ≈ 5.6438.
Why does a scientific calculator with trigonometric functions support radians and degrees?
Degrees divide a circle into 360 units for practical geometry and navigation, whereas radians represent the arc length on a unit circle (2π radians per cycle). Radians are required in calculus for derivatives of trigonometric functions like d/dx sin(x) = cos(x).