diff --git a/docs/src/functions/engineering/erf.md b/docs/src/functions/engineering/erf.md index 67fc4cd..c68b56e 100644 --- a/docs/src/functions/engineering/erf.md +++ b/docs/src/functions/engineering/erf.md @@ -8,7 +8,7 @@ lang: en-US **Note:** This draft page is under construction 🚧 ::: ## Overview -ERF (ERror Function) is a function of the Engineering category that calculates a value for the _error function_. Also known as the _Gauss error function_, the error function represents the probability of a random variable falling within a certain range, given that it follows a specified normal distribution. +ERF (ERror Function) is a function of the Engineering category that calculates a value for the _error function_. Also known as the _Gauss error function_, the error function represents the probability of a random variable falling within a certain range, given that it follows a specified normal distribution. ## Usage ### Syntax **ERF(X, Y) => erf** @@ -36,16 +36,16 @@ $$ * This figure illustrates some of the key characteristics of the error function: - * erf($0$) = $0$ - * erf($x$) = -erf($x$) - * As $x → ∞$, erf($x$) $→ 1$. - * As $x → -∞$, erf($x$) $→ -1$. + * $\text{erf}(0) = 0$ + * $\text{erf}(x) = -\text{erf}(x)$ + * As $x \rightarrow \infty$, $\text{erf}(x) \rightarrow 1$ + * As $x \rightarrow -\infty$, $\text{erf}(x) \rightarrow -1$ * The error function is a [transcendental](https://en.wikipedia.org/wiki/Transcendental_function), non-algebraic mathematical function. IronCalc implements the ERF function by numerical approximation using a power series. ## Examples [See some examples in IronCalc](https://app.ironcalc.com/?example=erf). ## Links -* See also IronCalc's [ERFC](/functions/engineering/erfc.md), [ERF.PRECISE](/functions/engineering/erf.precise.md) and [ERFC.PRECISE](/functions/engineering/ERFC.PRECISE.md) functions. +* See also IronCalc's [ERFC](/functions/engineering/erfc.md), [ERF.PRECISE](/functions/engineering/erf.precise.md) and [ERFC.PRECISE](/functions/engineering/erfc.precise.md) functions. * Visit Microsoft Excel's [ERF function](https://support.microsoft.com/en-gb/office/erf-function-c53c7e7b-5482-4b6c-883e-56df3c9af349) page. * Both [Google Sheets](https://support.google.com/docs/answer/9116267) and [LibreOffice Calc](https://wiki.documentfoundation.org/Documentation/Calc_Functions/ERF) provide versions of the ERF function. \ No newline at end of file diff --git a/xlsx/tests/docs/ERF.xlsx b/xlsx/tests/docs/ERF.xlsx index 0e7e9ac..238022f 100644 Binary files a/xlsx/tests/docs/ERF.xlsx and b/xlsx/tests/docs/ERF.xlsx differ