--quiet 安静的启动；REPL 启动时无横幅，不显示警告 --banner={yes|no|auto}开启或关闭 REPL 横幅 --color={yes|no|auto}开启或关闭文字颜色 --history-file={yes|no} 载入或导出历史记录 --depwarn={yes|no|error} 开启或关闭语法弃用警告，error 表示将弃用警告转换为错误。 --wa 和一些其它的 Julia 编辑环境中，很多 Unicode 数学符号可以使用反斜杠加 LaTeX 符号名 再按 tab 健打出。例如：变量名 δ 可以通过 \delta tab 来输入，甚至可以用 \alpha tab \hat tab \_2 tab 来输入 α̂₂ 这种复杂的变量名。如果你在某个地方（比如别人的代码里）看到了一个不知道怎么 输入的符号，你可以在 REPL 中输入 ?，然后粘贴那个符号，帮助文档会告诉你输入方法。 这个例子体现了一般原则，即相邻可表示的浮点数也有着相邻的二进制整数表示。 舍入模式 一个数如果没有精确的浮点表示，就必须被舍入到一个合适的可表示的值。然而，如果想的话，可 以根据舍入模式改变舍入的方式，如 IEEE 754 标准 所述。 5.3. 任意精度算术 29 Julia 所使用的默认模式总是 RoundNearest，指舍入到最接近的可表示的值，这个被舍入的值会使用 尽量少的有效位数。 基础知识与参考文献 浮点算术

followed by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂₂ by \alpha-tab-\hat- tab-\_2-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't therefore are composed of major, minor and patch numeric values, followed by pre-release and build alpha-numeric annotations. For example, v"0.2.1-rc1+win64" is broken into major version 0, minor version Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write:

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't therefore are composed of major, minor and patch numeric values, followed by pre-release and build alpha-numeric annotations. For example, v"0.2.1-rc1+win64" is broken into major version 0, minor version Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write:

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't therefore are composed of major, minor and patch numeric values, followed by pre-release and build alpha-numeric annotations. For example, v"0.2.1-rc1+win64" is broken into major version 0, minor version Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write:

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't therefore are composed of major, minor and patch numeric values, followed by pre-release and build alpha-numeric annotations. For example, v"0.2.1-rc1+win64" is broken into major version 0, minor version Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write:

followed by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂₂ by \alpha-tab-\hat- tab-\_2-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't therefore are composed of major, minor and patch numeric values, followed by pre-release and build alpha-numeric annotations. For example, v"0.2.1-rc1+win64" is broken into major version 0, minor version Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write:

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't therefore are composed of major, minor and patch numeric values, followed by pre-release and build alpha-numeric annotations. For example, v"0.2.1-rc1+win64" is broken into major version 0, minor version Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write:

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't therefore are composed of major, minor and patch numeric values, followed by pre-release and build alpha-numeric annotations. For example, v"0.2.1-rc1+win64" is broken into major version 0, minor version Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write:

by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂⁽²⁾ by \alpha-tab-\hat- tab-\^(2)-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't therefore are composed of major, minor and patch numeric values, followed by pre-release and build alpha-numeric annotations. For example, v"0.2.1-rc1+win64" is broken into major version 0, minor version Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write:

followed by tab. For example, the variable name δ can be entered by typing \delta-tab, or even α̂₂ by \alpha-tab-\hat- tab-\_2-tab. (If you find a symbol somewhere, e.g. in someone else's code, that you don't therefore are composed of major, minor and patch numeric values, followed by pre-release and build alpha-numeric annotations. For example, v"0.2.1-rc1+win64" is broken into major version 0, minor version Use Unicode characters rather than their LaTeX escape sequence, i.e. ``α = 1`` rather than ``\\alpha = 1``. 8. Place the starting and ending """ characters on lines by themselves. That is, write: