13 个工具

数学与计算工具

数学工具：统计、矩阵、几何等。

按名称、用途或关键词搜索。

13 个搜索结果

Percent of a number, percent change, and more.

Add, subtract, multiply, and divide fractions with auto-simplify.

Simplify ratios, solve a:b = c:x, and split totals.

Mean, median, and mode from a list of numbers.

Population/sample stdev, variance, and SEM.

Test primality and factor integers with BigInt.

GCD and LCM for two or more integers.

nPr / nCr（含重复）与 BigInt 大数结果。

求解 ax²+bx+c=0，含判别式与步骤。

Roman ↔ Arabic numerals (1–3999).

Area, perimeter, and volume for common shapes.

Dot, cross, norm, and angle.

Determinant, inverse, transpose, multiply, and add (≤8×8).