core.matrix Cheatsheet

core.matrix-cheatsheet.md

Core Matrix Cheatsheet

• An attempt to categorize operations by their effect on the shape of the data.

Apply to all elements (unary)

• abs
• acos
• asin
• atan
• cbrt (cubed-root)
• ceil
• cos
• cosh
• exp
• floor
• log
• log10
• logistic
• negate
• pow
• round
• signum
• sin
• sinh
• sqrt
• square
• tan
• tanh
• to-degrees
• to-radians

Other Unary

• clone
• dense
• density
• ecount
• element-type
• emax
• emin
• esum
• length
• length-squared
• non-zero-count
• normalize
• pack
• sparse
• zero-count

Dimensions

• column-count
• row-count
• shape
• slice-count

Element-wise binary (may include more and/or less arity)

• add
• cmp ; as-if (emap sign (sub a b))
• div
• e*
• e=
• e==
• emul
• eq
• ne
• scale
• sub

Element-wise (same shape)

• add-product
• add-scaled
• add-scaled-product
• assign
• clamp ; like (max (min m))
• eif
• emap
• emap-indexed
• ge
• gt
• le
• lt
• scale-add

Other Binary

• cross
• distance
• equals
• ge
• le
• inner-product
• mmul
• outer-product

One array -> 1 array with same shape

add-row

Change shape

• reshape
• broadcast
• transpose

Make bigger

• loin
• join-along
• brodcast
• order
• reshape

Make smaller

• order
• reshape

Change data

• broadcast-like
• fill
• assign
• multiply-row
• rotate
• set-column
• set-indices
• set-row
• set-selection
• shift
• swap-rows

Create array

• array
• block-diagonal-matrix
• column-matrix
• compute-matrix
• diagonal-matrix
• identity-matrix
• matrix
• new-array
• new-matrix
• new-scalar-array
• new-sparse-array
• new-vector
• permutation-matrix
• row-matrix
• scalar-array
• sparse-array
• sparse-matrix
• zero-array
• zero-matrix

Specific value(s)

• mget
• mset
• scalar
• select
• slice
• slice-view
• slice-views
• slices
• submatrix
• subvector

Test

• array?
• column-matrix?
• conforming?
• diagonal?
• identity-matrix?
• index?
• lower-triangular?
• mutable?
• native?
• numerical?
• orthogonal?
• column-matrix?
• same-shape?
• scalar?
• sparse?
• supports-dimensionality?
• supports-shape?
• symmetric?
• upper-triangular?
• vec?
• zero-dimensional?
• zero-matrix?

• Coerce

• as-vector
• to-vector
• ensure-mutable
• immutable
• mutable

traverse

• ereduce
• eseq
• rows

• Change implementation

• broadcast-coerce
• native
• change-implementation
• to-double-array
• to-nested-vectors
• to-object-array
• with-implementation

• Matrix->vector

• diagonal
• get-column
• get-row
• main-diagonal
• to-vector

• Other

• pm

unknown

• det
• index
• index-seq
• index-seq-for-shape
• inverse
• label
• labels
• permutation-matrix
• select-view
• trace
• transform