This note will teach us how to write mathematical equations with a curly brace, specifically when writing articles in an inline mode on microblogging sites.
Case equation with a curly brace in LateX:
Example 1: Probability equation
These equations are required when we represent a function with multiple use cases. For example, to define probability of the events.
- cases keyword creates a curly brace
- ampersand (&) symbol bring equal spacing
- double backslash act as new line with the curly brace
f(\omega) = \begin{cases} 1, & \text{if } \omega \text{ is Head} \\ 0, & \text{if } \omega \text{ is Tail} \end{cases}
Example 2: Probability function
In this example, we will show how to case equation with a curly brace in LateX for a random variable X which is equally likely to take each integer value in the range 
.
P_X(x) = \begin{cases} 1/n, & x = 1,2,3,4, \cdots, n \\ 0, & \text{elsewhere.} \end{cases}
Example 3: Cumulative distribution function
In this example, we will show how to case equation with a curly brace in LaTeX to write a cumulative distribution function of a random variable X which is equally likely to take each integer value in the range .
F_X(x) = \begin{cases} 0 & x < 1, \\ [x]/n, & 1 \leq x \leq n, \\ 1, & x \geq n, \end{cases}
![F_X(x) = \begin{cases} 0 & x < 1, \\ [x]/n, & 1 \leq x \leq n, \\ 1, & x \geq n, \end{cases}](https://s0.wp.com/latex.php?latex=+F_X%28x%29+%3D+%5Cbegin%7Bcases%7D+0+%26+x+%3C+1%2C+%5C%5C+%5Bx%5D%2Fn%2C+%26+1+%5Cleq+x+%5Cleq+n%2C+%5C%5C+1%2C+%26+x+%5Cgeq+n%2C+%5Cend%7Bcases%7D+&bg=ffffff&fg=000&s=0&c=20201002)
References
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