创建镜像方数？

Question

我可以使用数组row(1: 4), column(A1:D1), MMULT, TRANSPOSE, MUNIT,, +-*/, mod,sqrt,.. , functions

我的问题是：如何在 Excel 和 googlesheets 中创建像图像中那样的对称矩阵（matrix3-3、matrix4-4）？

我正在寻找此类数学的通用方法！

Answer 1

尝试：

=ARRAYFORMULA(IF((
 SPLIT(REPT(ROW(A1:A3)&" ", ROW(A1:A3)), " ")-TRANSPOSE(ROW(A1:A3))+1>0)*(LEN(
 SPLIT(REPT(ROW(A1:A3)&" ", ROW(A1:A3)), " ")-TRANSPOSE(ROW(A1:A3))+1)),
 SPLIT(REPT(ROW(A1:A3)&" ", ROW(A1:A3)), " ")-TRANSPOSE(ROW(A1:A3))+1, TRANSPOSE(
 SPLIT(REPT(ROW(A1:A3)&" ", ROW(A1:A3)), " ")-TRANSPOSE(ROW(A1:A3))+1)))

对于 4×4 网格使用 A1:A4 而不是 A1:A3

创建镜像方数？

Create a mirror square number?

transpose

split

google-sheets

array-formulas

google-sheets-formula