typos

_typos.toml

@@ -9,6 +9,7 @@ ABD = "ABD"
 DNE = "DNE"
 
 Hass = "Hass"
+Strang = "Strang"
 
 multline = "multline"
 

quarto/derivatives/condition.qmd

@@ -15,7 +15,7 @@ The *forward error* is $||f(x+\delta_x) - f(x)||$, the *relative forward error*
 
 The *backward error* is $||\delta_x||$, the *relative backward error* is $||\delta_x|| / ||x||$.
 
- The *absolute condition number* $\hat{\kappa}$ is worst case of this ratio $||\delta_f||/ ||\delta_x||$ as the pertubation size shrinks to $0$.
+ The *absolute condition number* $\hat{\kappa}$ is worst case of this ratio $||\delta_f||/ ||\delta_x||$ as the perturbation size shrinks to $0$.
 The relative condition number $\kappa$ divides $||\delta_f||$ by $||f(x)||$ and $||\delta_x||$ by $||x||$ before taking the ratio.
 
 

quarto/integral_vector_calculus/double_triple_integrals.qmd

@@ -669,7 +669,7 @@ integrate(rho(x,y), (y, h(x), g(x)), (x, -a, a))
 ##### Example (Strang)
 
 
-Integrate $\int_0^1 \int_y^1 \cos(x^2) dx dy$ avoiding the *impossible* integral of $\cos(x^2)$. As the integrand is continuous, Fubini's Theorem allows the interchange of the variable of integraton. The region, $R$, is a triangle in the first quadrant below the line $y=x$ and left of the line $x=1$. So we have:
+Integrate $\int_0^1 \int_y^1 \cos(x^2) dx dy$ avoiding the *impossible* integral of $\cos(x^2)$. As the integrand is continuous, Fubini's Theorem allows the interchange of the variable of integration. The region, $R$, is a triangle in the first quadrant below the line $y=x$ and left of the line $x=1$. So we have:
 
 
 $$

quarto/misc/julia_interfaces.qmd

@@ -114,7 +114,7 @@ The notebook interface has "cells" where one or more commands can be entered.
 In `IJulia`, a block of commands is sent to the kernel (the `Julia` interpreter) by typing "shift+return" or clicking on a "run" button. The output is printed below a cell, including graphics.
 
 
-When a cell is evaluating, the leading `[]` has an asterick (`[*]`) showing the notebook is awaiting the results of the calculation.
+When a cell is evaluating, the leading `[]` has an asterisk (`[*]`) showing the notebook is awaiting the results of the calculation.
 
 
 Once a cell is evaluated, the leading `[]` has a number inserted (e.g., `[1]`, as in the figure). This number indicates the order of cell evaluation. Once a notebook is interacted with, the state of the namespace need not reflect the top-to-bottom order of the notebook, but rather reflects the order of cell evaluations.

quarto/precalc/ranges.qmd

@@ -663,7 +663,7 @@ numericq(val)
 
 ##### Question
 
-Credit card numbers have a check digit to ensure data entry of a 16-digit number is correct. How does it work? The [Luhn Alogorithm](https://en.wikipedia.org/wiki/Luhn_algorithm).
+Credit card numbers have a check digit to ensure data entry of a 16-digit number is correct. How does it work? The [Luhn Algorithm](https://en.wikipedia.org/wiki/Luhn_algorithm).
 
 Let's see if `4137 8947 1175 5804` is a valid credit card number?