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Calculators
25–36 / 73Geometric sequence
Find the nth term and finite sum of a geometric sequence.
Exact Fibonacci number
Calculate F(n), with F(0)=0 and F(1)=1, up to n=10000.
Complex arithmetic
Add, subtract, multiply or divide complex numbers in rectangular form.
3D vector operations
Find vector sum, dot product, cross product and magnitudes.
Matrix multiplication
Multiply two compatible numeric matrices (up to 20 × 20).
Matrix determinant
Calculate a square matrix determinant with partial-pivot elimination.
Descriptive statistics
Summarize count, total, mean, median, range, population and sample variance.
Weighted average
Calculate an average from values and nonnegative weights.
Percentile calculator
Find a percentile using linear interpolation at index (n−1) × p.
Z-score calculator
Standardize a value relative to a known mean and positive standard deviation.
Correlation and linear regression
Fit y = intercept + slope × x and calculate Pearson correlation.
Geometric and harmonic means
Calculate multiplicative and reciprocal means for positive values.
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