numeric.js

http://numericjs.com/documentation.html

方法	描述
abs	Absolute value
acos	Arc-cosine
add	Pointwise sum x+y
addeq	Pointwise sum x+=y
all	All the components of x are true
and	Pointwise x && y
andeq	Pointwise x &= y
any	One or more of the components of x are true
asin	Arc-sine
atan	Arc-tangeant
atan2	Arc-tangeant (two parameters)
band	Pointwise x & y
bench	Benchmarking routine
bnot	Binary negation ~x
bor	Binary or x
bxor	Binary xor x^y
ccsDim	Dimensions of sparse matrix
ccsDot	Sparse matrix-matrix product
ccsFull	Convert sparse to full
ccsGather	Gather entries of sparse matrix
ccsGetBlock	Get rows/columns of sparse matrix
ccsLUP	Compute LUP decomposition of sparse matrix
ccsLUPSolve	Solve Ax=b using LUP decomp
ccsScatter	Scatter entries of sparse matrix
ccsSparse	Convert from full to sparse
ccsTSolve	Solve upper/lower triangular system
ccs	Supported ops include: add/div/mul/geq/etc…
cLU	Coordinate matrix LU decomposition
cLUsolve	Coordinate matrix LU solve
cdelsq	Coordinate matrix Laplacian
cdotMV	Coordinate matrix-vector product
ceil	Pointwise Math.ceil(x)
cgrid	Coordinate grid for cdelsq
clone	Deep copy of Array
cos	Pointwise Math.cos(x)
det	Determinant
diag	Create diagonal matrix
dim	Get Array dimensions
div	Pointwise x/y
diveq	Pointwise x/=y
dopri	Numerical integration of ODE using Dormand-Prince RK method. Returns an object Dopri.
Dopri.at	Evaluate the ODE solution at a point

方法	描述
dot	点乘，矩阵与向量相乘不需要先把向量转置
eig	特征值m.lambda.x和特征向量m.E.x
epsilon	2.220446049250313e-16
eq	Pointwise comparison x === y
exp	Pointwise Math.exp(x)
floor	Poinwise Math.floor(x)
geq	Pointwise x>=y
getBlock	Extract a block from a matrix
getDiag	Get the diagonal of a matrix
gt	Pointwise x>y
identity	Identity matrix
imageURL	Encode a matrix as an image URL
inv	Matrix inverse
isFinite	Pointwise isFinite(x)
isNaN	Pointwise isNaN(x)
largeArray	Don’t prettyPrint Arrays larger than this
leq	Pointwise x<=y
linspace	Generate evenly spaced values
log	Pointwise Math.log(x)
lshift	Pointwise x<
lshifteq	Pointwise x<<=y
lt	Pointwise x
LU	Dense LU decomposition
LUsolve	Dense LU solve
mapreduce	Make a pointwise map-reduce function
mod	Pointwise x%y
modeq	Pointwise x%=y
mul	Pointwise x*y
neg	Pointwise -x
neq	Pointwise x!==y
norm2	Square root of the sum of the square of the entries of x
norm2Squared	Sum of squares of entries of x
norminf	Largest modulus entry of x
not	Pointwise logical negation !x
or	Pointwise logical or x
oreq	Pointwise x
parseCSV	Parse a CSV file into an Array
parseDate	Pointwise parseDate(x)
parseFloat	Pointwise parseFloat(x)
pointwise	Create a pointwise function
pow	Pointwise Math.pow(x)
precision	Number of digits to prettyPrint
prettyPrint	Pretty-prints x
random	Create an Array of random numbers
rep	Create an Array by duplicating values

方法	描述
round	Pointwise Math.round(x)
rrshift	Pointwise x>>>y
rrshifteq	Pointwise x>>>=y
rshift	Pointwise x>>y
rshifteq	Pointwise x>>=y
same	x and y are entrywise identical
seedrandom	The seedrandom module
setBlock	Set a block of a matrix
sin	Pointwise Math.sin(x)
solve	Solve Ax=b
solveLP	Solve a linear programming problem
solveQP	Solve a quadratic programming problem
spline	Create a Spline object
Spline.at	Evaluate the Spline at a point
Spline.diff	Differentiate the Spline
Spline.roots	Find all the roots of the Spline
sqrt	Pointwise Math.sqrt(x)
sub	Pointwise x-y
subeq	Pointwise x-=y
sum	Sum all the entries of x
svd	Singular value decomposition
t	Create a tensor type T (may be complex-valued)
T.	Supported are: abs, add, cos, diag, div, dot, exp, getBlock, getDiag, inv, log, mul, neg, norm2, setBlock, sin, sub, transpose
T.conj	Pointwise complex conjugate
T.fft	Fast Fourier transform
T.get	Read an entry
T.getRow	Get a row
T.getRows	Get a range of rows
T.ifft	Inverse FFT
T.reciprocal	Pointwise 1/z
T.set	Set an entry
T.setRow	Set a row
T.setRows	Set a range of rows
T.transjugate	The conjugate-transpose of a matrix
tan	Pointwise Math.tan(x)
tensor	Tensor product ret[i][j] = x[i]*y[j]
toCSV	Make a CSV file
transpose	Matrix transpose
uncmin	Unconstrained optimization
version	Version string for the numeric library
xor	Pointwise x^y
xoreq	Pointwise x^=y

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numeric.js

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