Mathy

A math web service written in Haskell

Installation

* git clone [email protected]:Jobhdez/mathy-webservice.git

Running the api

* cabal build
* cabal run haskell-Arith

Examples

$ curl -X POST -d '{"expr": [[2,3,4],[4,6,7],[5,6,7]]}' -H 'Accept: application/json' -H 'Content-type: application/json' http://localhost:8081/api/matrix/det
{"exp":-3}

$ curl -X POST -d '{"expr": [[2,3,4],[4,6,7],[5,6,7]]}' -H 'Accept: application/json' -H 'Content-type: application/json' http://localhost:8081/api/matrix/matTrace
{"traceExp":15}

$ curl -X POST -d '{"expr": [[2,3,4],[4,3,7],[5,4,7]]}' -H 'Accept: application/json' -H 'Content-type: application/json' http://localhost:8081/api/matrix/matUpTriangular
{
    "expr": [
        [2, 3, 4],
        [0, 3, 7],
        [0, 0, 7]
    ]
}

$ curl -X POST -d '{"expr": [[2,3,4],[4,3,7],[5,4,7]]}' -H 'Accept: application/json' -H 'Content-type: application/json' http://localhost:8081/api/matrix/matLowTriangular
{
    "expr": [
        [2, 0, 0],
        [4, 3, 0],
        [5, 4, 7]
    ]
}

$ curl -X POST -d '{"mexp": [[2,3,4],[4,6,7],[5,6,7]], "mexp2": [[1,1,1],[1,1,1],[1,1,1]]}' -H 'Accept: application/json' -H 'Content-type: application/json' http://localhost:8081/api/matrix/arithmetic/addition

$ curl -X POST -d '{"mexp": [[2,3,4],[4,6,7],[5,6,7]], "mexp2": [[1,1,1],[1,1,1],[1,1,1]]}' -H 'Accept: application/json' -H 'Content-type: application/json' http://localhost:8081/api/matrix/arithmetic/subtraction

$ curl -X POST -d '{"mexp": [[2,3,4],[4,6,7]], "mexp2": [[1,1],[1,1],[1,1]]}' -H 'Accept: application/json' -H 'Content-type: application/json' http://localhost:8081/api/matrix/arithmetic/multiplication

$ curl -X GET -H 'Accept: application/json' -H 'Content-type: application/json' http://localhost:8081/api/matrix/arithmetic/exps

Running the tests

$ cabal test

Math supported

Matrix

• addition
• subtraction
• multiplication
• element wise power
• element wise exponential
• element wise log
• element wise absolute value
• maximum
• minimum

Vector

• addition
• subtraction
• element wise multiplication
• element wise power
• element wise exponential
• element wise log
• element wise absolute value
• maximum
• minimum

Linear Algebra

• determinant of 3x3 matrices
• trace
• upper triangular
• lower triangular

Neural Networks

Data Types supported: [Int], [Float], [[Int]], [[Float]]

• softmax
• logsoftmax
• softmax2d
• logsoftmax2d
• relu
• relu2d
• sigmoid
• sigmoid2d
• tanh
• tanh2d
• convolution

Matrix-Vec

• matrix-vec addition
• matrix-vec subtraction
• matrix-vec multiplication

Polynomial

• addition
• subtraction
• multiplication

Fraction

• addition
• subtraction
• multiplication

Troubleshoot

$ lsof -i:8081
$ kill $(lsof -t -i:8081)