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RunMat

Run math blazing fast

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© 2026 Dystr · Made withfor the scientific community.

RunMat™ is a registered trademark of Dystr, Inc. MATLAB® is a registered trademark of The MathWorks, Inc. RunMat is not affiliated with, endorsed by, or sponsored by The MathWorks, Inc.

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Builtin Reference
    • addpath
    • cd
    • copyfile
    • delete
    • dir
    • exist
    • fileattrib
    • fileparts
    • fullfile
    • genpath
    • getenv
    • getpref
    • isenv
    • isfile
    • isfolder
    • ispref
    • ls
    • matlabroot
    • memmapfile
    • mkdir
    • movefile
    • open
    • opentoline
    • path
    • pathsep
    • pcode
    • pwd
    • readstruct
    • rehash
    • restoredefaultpath
    • rmdir
    • rmpath
    • run
    • savepath
    • setenv
    • setpref
    • system
    • tempdir
    • tempname
    • uigetdir
    • uigetfile
    • uiputfile
    • unsetenv
    • userpath
    • what
    • winqueryreg
    • xmlread
    • xmlwrite

pathsep — Return the platform path-list separator.

Return the platform path-list separator.

Syntax

sep = pathsep()

Returns

NameTypeDescription
valueAnyResult value.

How pathsep works

  • Accepts MATLAB text inputs such as string scalars and character row vectors for path, name, or URL arguments where applicable.
  • Runs on the host using the active RunMat filesystem, environment, or HTTP abstraction as appropriate.
  • Reports MATLAB-style runtime errors for unsupported argument shapes or unavailable host capabilities.

Using pathsep with coding agents

Open a RunMat example with live inputs, then ask the agent to explain how pathsep changes the result.

Run a small pathsep example, explain the result, then change one input and compare the output.

Related Io functions

Repl Fs

addpath · cd · copyfile · delete · dir · exist · fileattrib · fileparts · fullfile · genpath · getenv · getpref · isenv · isfile · isfolder · ispref · ls · matlabroot · memmapfile · mkdir · movefile · open · opentoline · path · pcode · pwd · readstruct · rehash · restoredefaultpath · rmdir · rmpath · run · savepath · setenv · setpref · system · tempdir · tempname · uigetdir · uigetfile · uiputfile · unsetenv · userpath · what · winqueryreg · xmlread · xmlwrite

Net

accept · read · readline · tcpclient · tcpserver · write

Tabular

arrayDatastore · csvread · csvwrite · detectImportOptions · dlmread · dlmwrite · fileDatastore · parquetDatastore · parquetinfo · parquetread · readcell · readmatrix · readtable · readtimetable · spreadsheetImportOptions · writecell · writematrix · writetable · writetimetable · xlsread · xlswrite

Audio

audioinfo · audioread

Io

clc · diary · disp · display · format · input

Filetext

fclose · feof · fgetl · fgets · fileread · filewrite · fopen · fprintf · fread · frewind · fwrite · readlines · writelines

Archive

gunzip · gzip · unzip

Hdf5

h5disp · h5info · h5read · h5write · h5writeatt · hdf5info · hdf5read · hdf5write

Import

importdata · textscan

Json

jsondecode · jsonencode

Mat

load · matfile · save

Http

sendmail · urldecode · urlencode · weboptions · webread · websave · webwrite

About RunMat

RunMat is an open-source runtime that executes MATLAB-syntax code blazing on any GPU. It is licensed under the Apache 2.0 license.

  • RunMat automatically optimizes your math for GPU execution on Apple, Nvidia, and AMD hardware. No code changes needed. Simulations that took hours now take minutes.
  • Start running code in seconds. RunMat runs in the browser, on the desktop, or from the CLI. No license server, no IT ticket.

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On this page
  • Syntax
  • Returns
  • How pathsep works
  • Using pathsep with coding agents
  • Related Io functions
  • Repl Fs
  • Net
  • Tabular
  • Audio
  • Io
  • Filetext
  • Archive
  • Hdf5
  • Import
  • Json
  • Mat
  • Http
  • About RunMat