During the review process, add the following fields as needed:
- Implementation: apple/swift#12884
| import argparse | |
| import sys | |
| from functools import reduce | |
| from typing import Iterator | |
| def encode(raw: str) -> int: | |
| return reduce(lambda x, y: x * 8 + y, | |
| map(lambda x: x % 32 % 5 + 3, raw.encode())) | |
| def _decode(cooked: int) -> Iterator[int]: |
During the review process, add the following fields as needed:
| Glyph | Code | Description |
|---|---|---|
| ! | U+0021 | EXCLAMATION MARK |
| % | U+0025 | PERCENT SIGN |
| & | U+0026 | AMPERSAND |
| * | U+002A | ASTERISK |
| + | U+002B | PLUS SIGN |
| - | U+002D | HYPHEN-MINUS |
| / | U+002F | SOLIDUS |
| < | U+003C | LESS-THAN SIGN |
Extracted from UTN28
"The following table gives the default math keywords, their target characters and codes along with spacing and linear-format build-up properties."
Omitted from the original table are operands, enclosures, spaces, big/long variants, and non-NFKC characters. Three characters that default to their emoji variants on iOS, and one related character, are excised.
| Keyword | Glyph | Code | Spacing | LF Property |
|---|---|---|---|---|
| pm | ± | U+00B1 | unary/binary | unary/binary |
| times | × | U+00D7 | binarynsp | normal |
Xiaodi Wu
June 17, 2017
The design, re-design, and implementation of [SE-0104][1], a proposal to revise integer protocols in Swift, is now largely complete in shipping previews of Swift 4. As an exercise, I have used the new APIs to develop a [set of additional numeric facilities][2]. Here are some insights gained from that experience--and from two unpublished exercises to implement a BigInt type (one from scratch, one wrapping GMP)--as well as suggestions for improvement.
protocol Arithmetic : Equatable, ExpressibleByIntegerLiteral
An type that provides certain arithmetic operations (addition, subtraction, and multiplication).
Types that conform to Arithmetic satisfy the following conditions for any values a, b, and c
(unless the result of an operation overflows the maximum size of the conforming type):
+) is commutative; that is, a + b == b + aWe propose to complete Swift's suite of range operators to introduce a fully open range (<.<) and the second complementary half-open range (<..).
| my.data.frame <- read.delim("tab_delimited_file_with_probeset_ids_in_first_column.txt", row.names=1) | |
| my.data.matrix <- as.matrix(my.data.frame) | |
| # PCA by sample: | |
| # center each gene (mean) without scaling | |
| # scale each sample (root mean square) without centering | |
| # transpose the matrix to PCA by sample instead of by gene | |
| a <- scale(t(my.data.matrix), center=TRUE, scale=FALSE) | |
| b <- scale(t(a), center=FALSE, scale=TRUE) |
| display_errors = Off | |
| log_errors = On | |
| magic_quotes_gpc = Off | |
| session.bug_compat_42 = 0 | |
| session.bug_compat_warn = 0 | |
| max_execution_time = 30 | |
| max_input_time = 600 | |
| memory_limit = 128M |
| USE caliban; | |
| LOAD DATA LOCAL INFILE '~/morbidmap.txt' INTO TABLE `morbidmap` FIELDS TERMINATED BY '|' LINES TERMINATED BY '\n'; | |
| LOAD DATA LOCAL INFILE '~/omim.tsv' INTO TABLE `omim` FIELDS TERMINATED BY '\t' LINES TERMINATED BY '\n'; | |
| LOAD DATA LOCAL INFILE '~/refFlat.txt' INTO TABLE `refflat` FIELDS TERMINATED BY '\t' LINES TERMINATED BY '\n' IGNORE 1 LINES; | |
| LOAD DATA LOCAL INFILE '~/snpedia.tsv' INTO TABLE `snpedia` FIELDS TERMINATED BY '\t' LINES TERMINATED BY '\n'; | |
| USE dbsnp; | |
| LOAD DATA LOCAL INFILE '~/OmimVarLocusIdSNP.bcp' INTO TABLE `OmimVarLocusIdSNP` FIELDS TERMINATED BY '\t' LINES TERMINATED BY '\n'; | |
| LOAD DATA LOCAL INFILE '~/b129_SNPChrPosOnRef_36_3.bcp' INTO TABLE `b129_SNPChrPosOnRef_36_3` FIELDS TERMINATED BY '\t' LINES TERMINATED BY '\n'; |