Desmos Scientific Calculator

Free online scientific calculator for advanced math, science, statistics and engineering calculations.

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Variables & Functions

Assign variables like a=15 or functions like f(x)=x^2.

Scientific Calculator Formulas

Key trigonometric, logarithmic, and exponential calculation identities.

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Trigonometric Tangent

$$ \tan(\theta) = \frac{\sin(\theta)}{\cos(\theta)} $$

Quotient of sine and cosine.

Change of Base Logarithm

$$ \log_b(x) = \frac{\ln(x)}{\ln(b)} $$

Ratio of natural logarithms.

Euler's Formula & Modulus

$$ |a + bi| = \sqrt{a^2 + b^2} $$

Euclidean norm of complex coordinate.

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