transport ..... 355 29.4 External applications ..... 355 29.5 Parallelization ..... 355 29.6 REPL formatting ..... 356 29.7 Debugging and profiling ..... 357 30 Embedding Julia ..... 359 30 @code_warntype ..... 421 34.26 Performance of captured variable ..... 422 35 Workflow Tips ..... 425 35.1 REPL-based workflow ..... 425 35.2 Browser-based workflow ..... 426 35.3 Revise-based workflows .. Asked Questions ..... 436 37.1 General ..... 436 37.2 Public API ..... 437 37.3 Sessions and the REPL ..... 437 37.4 Scripting ..... 438 37.5 Variables and Assignments ..... 439 37.6 Functions

locations ..... 315 29.2 External applications ..... 317 29.3 Parallelization ..... 317 29.4 REPL formatting ..... 318 29.5 Debugging and profiling ..... 319 30 Embedding Julia ..... 321 30 captured variable 379 34.26 Checking for equality with a singleton 380 35 Workflow Tips 381 35.1 REPL-based workflow 381 35.2 Browser-based workflow 382 35.3 Revise-based workflows ..... 382 36 390 37 Frequently Asked Questions ..... 392 37.1 General ..... 392 37.2 Sessions and the REPL ..... 393 37.3 Scripting ..... 393 37.4 Functions ..... 394 37.5 Types, type declarations, and

locations ..... 315 29.2 External applications ..... 317 29.3 Parallelization ..... 317 29.4 REPL formatting ..... 318 29.5 Debugging and profiling ..... 319 30 Embedding Julia ..... 321 30 captured variable 379 34.26 Checking for equality with a singleton 380 35 Workflow Tips 381 35.1 REPL-based workflow 381 35.2 Browser-based workflow 382 35.3 Revise-based workflows ..... 382 36 390 37 Frequently Asked Questions ..... 392 37.1 General ..... 392 37.2 Sessions and the REPL ..... 393 37.3 Scripting ..... 393 37.4 Functions ..... 394 37.5 Types, type declarations, and

locations ..... 315 29.2 External applications ..... 317 29.3 Parallelization ..... 317 29.4 REPL formatting ..... 318 29.5 Debugging and profiling ..... 319 30 Embedding Julia ..... 321 30 captured variable 379 34.26 Checking for equality with a singleton 380 35 Workflow Tips 381 35.1 REPL-based workflow 381 35.2 Browser-based workflow 382 35.3 Revise-based workflows ..... 382 36 390 37 Frequently Asked Questions ..... 392 37.1 General ..... 392 37.2 Sessions and the REPL ..... 393 37.3 Scripting ..... 393 37.4 Functions ..... 394 37.5 Types, type declarations, and

transport 398 30.4 External applications 398 30.5 Parallelization 398 30.6 Garbage Collection 400 30.7 REPL formatting 400 30.8 System and Package Image Building 401 30.9 Debugging and profiling 402 31 Embedding package loading and package precompiling time 481 35.6 Miscellaneous 483 36 Workflow Tips 490 36.1 REPL-based workflow 490 36.2 Browser-based workflow 491 36.3 Revise-based workflows 491 37 Style Guide possible 500 38 Frequently Asked Questions 502 38.1 General 502 38.2 Public API 503 38.3 Sessions and the REPL 503 38.4 Scripting 504 38.5 Variables and Assignments 505 38.6 Functions 506 38.7 Types, type declarations

JULIA_NUM_THREADS ..... 323 JULIA_THREAD_SLEEP_THRESHOLD ..... 324 JULIA_EXCLUSIVE ..... 324 29.4 REPL formatting ..... 324 JULIA_ERROR_COLOR ..... 324 JULIA_WARN_COLOR ..... 324 JULIA_INFO_COLOR variable ..... 390 37 Checking for equality with a singleton ..... 393 38.1 REPL-based workflow ..... 395 A basic editor/REPL workflow ..... 395 38.2 Browser-based workflow ..... 396 38.3 Revise-based 407 Why don't you compile Matlab/Python/R/... code to Julia? ..... 407 40.2 Sessions and the REPL ..... 408 How do I delete an object in memory? ..... 408 How can I modify the declaration of a

JULIA_NUM_THREADS ..... 333 JULIA_THREAD_SLEEP_THRESHOLD ..... 333 JULIA_EXCLUSIVE ..... 333 36.4 REPL formatting ..... 334 JULIA_ERROR_COLOR ..... 334 JULIA_WARN_COLOR ..... 334 JULIA_INFO_COLOR Performance of captured variable ..... 394 44 Workflow Tips ..... 397 44.1 REPL-based workflow ..... 397 A basic editor/REPL workflow ..... 397 44.2 Browser-based workflow ..... 398 45 Style Guide generic code when possible ..... 404 46 Frequently Asked Questions ..... 407 46.1 Sessions and the REPL ..... 407 How do I delete an object in memory? ..... 407 How can I modify the declaration of a

Variables 323 29.1 File locations 323 29.2 External applications 325 29.3 Parallelization 326 29.4 REPL formatting 327 29.5 Debugging and profiling 327 30 Embedding Julia 329 30.1 High-Level Embedding @code_warntype ..... 386 34.26 Performance of captured variable ..... 387 35 Workflow Tips 389 35.1 REPL-based workflow 389 35.2 Browser-based workflow 390 35.3 Revise-based workflows 390 36 Style 37 Frequently Asked Questions 400 37.1 General 400 37.2 Public API 401 37.3 Sessions and the REPL 401 37.4 Scripting 402 37.5 Functions 403 37.6 Types, type declarations, and constructors 406

library features 21 10 Standard library changes 23 LinearAlgebra 23 Markdown 23 Random 23 REPL 23 SparseArrays 23 Dates 24 Statistics 24 Sockets 24 Distributed 24 11 Deprecated or removed JULIA_NUM_THREADS ..... 351 JULIA_THREAD_SLEEP_THRESHOLD ..... 352 JULIA_EXCLUSIVE ..... 352 41.4 REPL formatting ..... 352 JULIA_ERROR_COLOR ..... 352 JULIA_WARN_COLOR ..... 352 JULIA_INFO_COLOR equality with a singleton ..... 421 50 Workflow Tips ..... 423 50.1 REPL-based workflow ..... 423 A basic editor/REPL workflow ..... 423 50.2 Browser-based workflow ..... 424 50.3 Revise-based

locations ..... 315 29.2 External applications ..... 317 29.3 Parallelization ..... 317 29.4 REPL formatting ..... 318 29.5 Debugging and profiling ..... 319 30 Embedding Julia ..... 321 30 captured variable 379 34.26 Checking for equality with a singleton 380 35 Workflow Tips 381 35.1 REPL-based workflow 381 35.2 Browser-based workflow 382 35.3 Revise-based workflows ..... 382 36 390 37 Frequently Asked Questions ..... 392 37.1 General ..... 392 37.2 Sessions and the REPL ..... 393 37.3 Scripting ..... 393 37.4 Functions ..... 394 37.5 Types, type declarations, and