Hands-On Mac 175: Solve Math in Notes

Summary

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Episode: Hands-On Mac 175: Solve Math in Notes
Release Date: March 27, 2025
Host: Micah Sargent

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Introduction

In episode 175 of Hands-On Mac, Micah Sargent delves into a nifty new feature in the macOS Sequoia update—the ability to perform mathematical calculations directly within the Notes app. This functionality, aptly named Math Notes, transforms the Notes app from a simple text repository into a powerful tool for quick computations and variable management, eliminating the need for separate calculator applications.

Overview of Math Notes

Micah begins by introducing the core concept of Math Notes, emphasizing its integration within the Notes app. He explains how the feature operates using the equal sign as a trigger for calculations.

Micah Sargent [01:40]: "The equal sign is the magical symbol that kind of makes Math Notes actually work. That lets you start to calculate values in Math Notes."

By typing an expression followed by the equal sign, users can prompt the Notes app to solve equations seamlessly. Micah demonstrates this with a simple calculation:

Micah Sargent [03:15]: "Let's start with parentheses... 24 divided by 6, and let's do that to the third power. We hit equal and boom, 64 appears."

Formatting Options for Math Results

Micah highlights the flexibility in how Math Notes presents results, offering three formatting options:

1. Suggest Results: Displays the calculated value as a suggestion requiring user confirmation by hitting return.
2. Insert Results: Automatically inserts the calculated value into the note without additional steps.
3. Off: Disables automatic calculations, treating the content as plain text.

Micah Sargent [04:05]: "If we go up to format and we go down to math results, we can choose to just insert the results... Suggest results requires you to hit return to actually save it."

Using Mathematical Expressions

The episode details the syntax and symbols compatible with Math Notes, allowing for a variety of mathematical operations:

• Division: Use the slash (/) key.
• Exponents: Utilize the caret (^) symbol.
• Multiplication: Either the asterisk (*) or the x key can be used, though the app prefers the multiplication symbol (×).

Micah provides practical examples to illustrate these functionalities:

Micah Sargent [05:20]: "If you just want math to... insert the results. For instance, 23 times 4 automatically became 92 without even hitting equal."

Defining and Using Variables

A standout feature of Math Notes is the ability to define variables, enhancing the app's utility for more complex calculations. Micah explains the rules for variable usage:

• Variables must be defined using the Latin alphabet.
• Definitions must precede their usage in expressions.
• Variables are case-sensitive and recognized only when defined without spaces around the equal sign.

Micah Sargent [06:44]: "Variables are only available and used when you create them using the Latin Alphabet... define your variables first and then you can use those variables in different ways."

He demonstrates defining variables with a practical example:

oranges=12
apples=15
bananas=2
cherries=8

oranges + apples + bananas + cherries

Upon hitting return, the Notes app calculates the sum:

Micah Sargent [07:30]: "Oranges plus apples plus bananas plus cherries equals 37. This is great if you are maybe trying to split up the values of a specific trip..."

Additionally, Micah showcases an interactive tool within the Notes app that allows users to adjust variable values dynamically, updating the results instantaneously.

Practical Use Cases

Micah envisions several scenarios where Math Notes can be invaluable:

• Budgeting Trips: Calculating and splitting expenses such as tickets, accommodation, and meals.
• Quick Financial Calculations: Summing expenses or calculating totals without switching apps.
• Educational Purposes: Helping students practice and verify mathematical problems directly within their notes.

Micah Sargent [09:10]: "Being able to go through and say, okay, you're paying this, you're paying that... and then have that appear at the end is a great thing."

Limitations and Best Practices

While Math Notes offers substantial functionality, Micah points out some limitations and best practices to ensure smooth usage:

• Variable Definition Order: Always define variables before referencing them in expressions to avoid calculation errors.
• No Spaces in Variable Definitions: Ensure there are no spaces around the equal sign when defining variables.
• Formatting Consistency: Maintain consistency in the use of symbols and syntax to prevent miscalculations.

Micah Sargent [10:30]: "If you were to put oranges plus apples plus bananas plus cherries equals above those values, then those variables, then it would not calculate because Math Notes needs to see what the variables are first."

Conclusion

Micah Sargent wraps up the episode by summarizing the versatility and convenience that Math Notes brings to the macOS Notes app. This feature empowers users to perform a wide range of calculations—from basic arithmetic to variable management—directly within their notes, streamlining workflow and enhancing productivity.

Micah Sargent [11:20]: "That is a very cool feature added in Mac OS Sequoia that will let you do kind of simple back of the napkin math if you will, right there in the Notes app."

He encourages listeners to explore the feature and reach out with any questions related to macOS or iOS, signifying TWiT’s commitment to supporting its tech-savvy audience.

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Notable Quotes

• Micah Sargent [01:40]: "The equal sign is the magical symbol that kind of makes Math Notes actually work."
• Micah Sargent [04:05]: "If you go up to format and we go down to math results, we can choose to just insert the results."
• Micah Sargent [06:44]: "Variables are only available and used when you create them using the Latin Alphabet."
• Micah Sargent [09:10]: "Being able to go through and say, okay, you're paying this, you're paying that... and then have that appear at the end is a great thing."
• Micah Sargent [11:20]: "That is a very cool feature added in Mac OS Sequoia that will let you do kind of simple back of the napkin math if you will, right there in the Notes app."

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This comprehensive exploration of Math Notes in the Hands-On Mac episode provides listeners with valuable insights into leveraging the Notes app for both everyday calculations and more complex variable-based computations. Whether you're budgeting for a trip, managing personal finances, or simply performing quick math on the go, Math Notes offers a seamless and integrated solution within your macOS environment.

Transcript

[Micah Sargent]

Coming up on Hands on Mac, let's take a look at the math you can do in the Notes app on macOS.

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[Micah Sargent]

Podcasts you love from people you trust. This is twit. Hello and welcome to Hands On Mac. Or welcome back if you've been here before. I am Micah Sargent and today we're taking a look at a newly added feature in the Notes app on macOS Sequoia, which gives you the ability to do some number crunching without needing to use a separate calculator or anything like that. It's called Math Notes and it is possible to use in, well, the Notes app. So let's head over to Mac OS and take a look. So here we are on Mac OS and let's take a look. The important thing to note is that the equal sign is the magical symbol that kind of makes Math Notes actually work. That lets you start to calculate values in Math Notes. So as we are in Notes, we'll go ahead and give this a title and we'll call this Math Notes example. If I can spell that, and because I have my Notes app set to create a title first, then I want to get that out of the way. Now we're in the body of the document, so we can kind of work with this. Now, when it comes to Math Notes, the Notes app will solve all sorts of expressions. So you can solve these expressions that have parentheses, that have basic and that have scientific operations in them. And of course, it's important to understand that, as you might imagine, the Notes app is going to follow the standard order of operations. Pemdas, please excuse my dear Aunt Sally. Parentheses, exponents, mult, multiplication, division, addition, and subtraction. So if you want certain parts of your expression to be solved first, obviously you need to put those in parentheses. So when it comes to this, let's do something fun. We'll start with parentheses, because I love to throw some of those in there. And you are probably familiar with kind of the standard keyboard options that are equivalent to things like the true division sign and the true, you know, having an expone that is in the superscript, the true multiplication sign. Using the slash key will give you division. Using the caret will give you whatever the number is afterward is the exponent. And of course, using an X will give you times. Or you can also use asterisk. So in the parentheses, we're going to do 24 divided by 6, and let's do that to the third power. Now you'll note nothing has happened. Remember what I said before, the important aspect of this is that equal sign. We hit equal and boom, 64 appears. Now, this appears in orange, and that is because it is currently a suggestion. So you can set it up in different ways. Here I'm going to hit return because that is what turns the suggestion into an actual final answer. But let's say you just want math to. Or the Notes app rather to automatically provide. You want the Notes app to automatically provide you with the answer afterward. If we go up to format and we go down to math results, we can choose to just insert the results. Suggest results requires you to hit return to actually save it. And then last but not least is off, which says, I don't want you doing any of that. My notes are just my notes and the math. There is not math that I want you calculating. I'm going to choose Insert results because I want it to give that answer every time now we could also do something as simple as 23 times 4. And you could see there that it went ahead and not only gave me the answer, but it didn't even require me to hit equal. And it also changed the asterisk to a multiplication symbol. And that is a true multiplication symbol, not just the X key. Then we can do one more. Let's do 24 divided by 5. Sure. That's what I accidentally typed. Times 32 over 8 equals 19.2. So once again it changes to that multiplication sign and we see 19.2.

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[Micah Sargent]

You can also define variables. Now, variables are only available and used when you create them using the Latin Alphabet. And it's important that you. In order for notes to recognize the variable, it has to come before any expression that uses the variable. So define your variables first and then you can use those variables in different ways. So what I'm going to do is hit return a couple of times. And you also need to note that the only way that a variable works is if you define the variable, then hit equal and then put the value so no spaces between those equal signs. So let's go with oranges equals 12, apples equals 15, bananas. Bananas equals 2, cherries equals 8. Now on the next line, because I have defined those variables, I can do oranges plus apples plus bananas plus cherries. And then because it's smart enough to realize that I am trying to add those values together, I can hit return to accept it. It now turns those, those, those words above into the orange color, letting me know that it has truly created variables. Now I could go up and Change this to 17, which automatically changes the value below 28. And we can do 6 instead. Now you'll notice that each of these values, oranges plus apples plus bananas plus cherries equals 63. This is great if you are maybe trying to split up the values of a specific trip that you're going on and so you know that the tickets are this amount each, that the hotel is this amount, so on and so forth. Being able to go through and say, okay, you know, you're paying this, you're paying that, divide all of that by this amount and then have that appear at the end is a great thing because then you can also share this with another person. And then of course, as we mentioned before, you do have the ability to use those variables however you want. And then you can also, if you'd like, just double click on a value and then you can raise it or lower it using this special little tool essentially like a number line that can increase the value. So personally I like just typing it as opposed to using this number line. But perhaps that is good for you if you are trying to kind of see quickly how subtle shifts to those values will make a difference in the actual answer. Now one last thing that I'll note is again, if I were to put oranges plus apples plus bananas plus cherries equals 8 or equals above those values, then those variables, then it would not calculate because Math Notes needs to see what the variables are first. So it either needs to be to the left of so we could define it on the same line and then do that expression at the end equation at the end or we need to put it above it. So before and then last but not least, as I mentioned before, if you don't like Math Notes anytime, you can go up to format, go to Math Results and change it to off with suggest of course being in the middle where if you want to have it solve it, it will. Or you can just simply move along and not have it saved. So that is a very cool feature added in Mac OS Sequoia that will let you do kind of simple back of the napkin math if you will, right there in the Notes app. I want to thank you all for tuning in to this week's episode of Hands on Mac. I bring the show to you every week and look forward to another episode next week. If you have any questions related to macOS or iOS or frankly any of Apple's operating systems, be sure to reach out. Micahwit TV is how you get in touch and I'll catch you again next week for another episode of Hands on Mac. But before I go, let me remind you, TWiT TV Club TWiT$7 a month. And when you join the club you gain access to some awesome things Ad free episodes, our special Twit plus bonus feed, and the members Only Discord server. We'd love to have you as part of the club, so be sure to join us there. But now it is time to say goodbye and I'll catch you again soon.

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