---
title: "Meaning & Key Takeaway of: Square root of a cosine? How is that ever…"
description: "\"Square root of a cosine? How is that ever going to be useful?\" — Aprilynne Pike"
image: "https://sms4smile.com/quotes/i/9de/aprilynne-pike-4513_home_square-root-of-a-cosine-how-is-that-ever_899647.png"
---

#  Square root of a cosine? How is that ever going to be…

![“Square root of a cosine? How is that ever going to be useful?” quote by Aprilynne Pike](https://sms4smile.com/quotes/i/9de/aprilynne-pike-4513_home_square-root-of-a-cosine-how-is-that-ever_899647.png)   [Download](https://sms4smile.com/quotes/i/9de/aprilynne-pike-4513_home_square-root-of-a-cosine-how-is-that-ever_899647.png) [Open image](https://sms4smile.com/quotes/i/9de/aprilynne-pike-4513_home_square-root-of-a-cosine-how-is-that-ever_899647.png)

> “Square root of a cosine? How is that ever going to be useful?”

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

## About This Quote

This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.

Questioning the practicality of abstract math concepts like the square root of a cosine, implying they seem useless.

**In simple terms:** Some math seems impractical.

Key Takeaway

Seek real‑world applications for abstract ideas.

Themes

mathematics practicality curiosity education critical thinking

Mood

inquisitive analytical

Type

educational philosophical

When to use this quote

- STEM education
- research projects
- engineering design
- data analysis

Key Concepts

abstract theory applied math problem solving

Questions to Reflect On

- How can abstract math inspire innovation?
- When have you applied a seemingly useless idea?

A Different Perspective

Even obscure concepts can become useful in unexpected ways.

★ ★ ★ ★ ★   No ratings yet

[Cosine](https://sms4smile.com/quotes/about/cosine-1229299/) [Cosine Going](https://sms4smile.com/quotes/about/cosine-going-1229300/) [Home](https://sms4smile.com/quotes/about/home/) [Mathematics](https://sms4smile.com/quotes/about/mathematics/) [Root Cosine](https://sms4smile.com/quotes/about/root-cosine-1229298/) [Roots](https://sms4smile.com/quotes/about/roots/) [Square](https://sms4smile.com/quotes/about/square/) [Square Root](https://sms4smile.com/quotes/about/square-root-274541/) [Square roots](https://sms4smile.com/quotes/about/square-roots/) [Squares](https://sms4smile.com/quotes/about/squares/)

## Related quotes

> [The square root of I is I.](https://sms4smile.com/quotes/vladimir-nabokov/the-square-root-of-i-is-i/)

[Vladimir Nabokov](https://sms4smile.com/quotes/author/vladimir-nabokov/)

> [The square root of nothing.](https://sms4smile.com/quotes/r-d-laing/the-square-root-of-nothing/)

[R. D. Laing](https://sms4smile.com/quotes/author/r-d-laing/)

> [The square root of 69 is 8(ate) som'](https://sms4smile.com/quotes/drake/the-square-root-of-69-is-8-ate-som/)

[Drake](https://sms4smile.com/quotes/author/drake/)

> [I had long since given up trying to extract from a woman as it were the square root of her unknown quantity, the mystery…](https://sms4smile.com/quotes/marcel-proust/i-had-long-since-given-up-trying-to-extract-from-a-woman-as-it-were/)

[Marcel Proust](https://sms4smile.com/quotes/author/marcel-proust/)

> [Is the square root of hate the same thing as love times love?](https://sms4smile.com/quotes/eugene-mirman/is-the-square-root-of-hate-the-same-thing-as-love-times-love/)

[Eugene Mirman](https://sms4smile.com/quotes/author/eugene-mirman/)

> [The human brain finds it extremely hard to cope with a new level of abstraction. This is why it was well into the eighteenth…](https://sms4smile.com/quotes/keith-devlin/the-human-brain-finds-it-extremely-hard-to-cope-with-a-new-level-of/)

[Keith Devlin](https://sms4smile.com/quotes/author/keith-devlin/)

> [But think of Adam and Eve like an imaginary number, like the square root of minus one: you can never see any concrete proof…](https://sms4smile.com/quotes/philip-pullman/but-think-of-adam-and-eve-like-an-imaginary-number-like-the-square/)

[Philip Pullman](https://sms4smile.com/quotes/author/philip-pullman/)

> [If I can't get people to commit themselves on whether or not there is a square root of two, then I won't touch on…](https://sms4smile.com/quotes/tom-lehrer/if-i-can-t-get-people-to-commit-themselves-on-whether-or-not-there-is/)

[Tom Lehrer](https://sms4smile.com/quotes/author/tom-lehrer/)

> [Speaking of human computers, there is a guy named Art Benjamin, he's a human calculator. He says it's a skill he learned as a…](https://sms4smile.com/quotes/bill-nye/speaking-of-human-computers-there-is-a-guy-named-art-benjamin-he-s-a/)

[Bill Nye](https://sms4smile.com/quotes/author/bill-nye/)

> [I met a man once who told me that far from believing in the square root of minus one, he didn't believe in minus…](https://sms4smile.com/quotes/edward-charles-titchmarsh/i-met-a-man-once-who-told-me-that-far-from-believing-in-the-square/)

[Edward Charles Titchmarsh](https://sms4smile.com/quotes/author/edward-charles-titchmarsh/)

> [Irrationality is the square root of all evil](https://sms4smile.com/quotes/douglas-hofstadter/irrationality-is-the-square-root-of-all-evil/)

[Douglas Hofstadter](https://sms4smile.com/quotes/author/douglas-hofstadter/)

> [Programming graphics in X is like finding the square root of PI using Roman numerals.](https://sms4smile.com/quotes/henry-spencer/programming-graphics-in-x-is-like-finding-the-square-root-of-pi-using/)

[Henry Spencer](https://sms4smile.com/quotes/author/henry-spencer/)

> [How can you shorten the subject? That stern struggle with the multiplication table, for many people not yet ended in victory, how can you…](https://sms4smile.com/quotes/stephen-leacock/how-can-you-shorten-the-subject-that-stern-struggle-with-the/)

[Stephen Leacock](https://sms4smile.com/quotes/author/stephen-leacock/)

> [Vancouver is the square root of negative one. Technically it shouldn't exist, but it does. I can't imagine living anywhere else.](https://sms4smile.com/quotes/douglas-coupland/vancouver-is-the-square-root-of-negative-one-technically-it-shouldn-t/)

[Douglas Coupland](https://sms4smile.com/quotes/author/douglas-coupland/)

> [“The square root of negative one is the imaginary unit (i)”](https://sms4smile.com/quotes/xxprokiller132xx/the-square-root-of-negative-one-is-the-imaginary-unit-i/)

[Xxprokiller132xx](https://sms4smile.com/quotes/author/xxprokiller132xx/)

## More by Aprilynne Pike

> [“If your clothes are enough to drive would-be friends away, they're not the kind of friends you want." Typical mother advice. Sweet, honest, and…](https://sms4smile.com/quotes/aprilynne-pike/if-your-clothes-are-enough-to-drive-would-be-friends-away-they-re-not/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [“Tamani?" she asked, even though she knew this was the wrong time. "How is a plant supposed to beat a superstrong troll?”](https://sms4smile.com/quotes/aprilynne-pike/tamani-she-asked-even-though-she-knew-this-was-the-wrong-time-how-is/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [“It didn't matter to her that Tamani only had weak magic, he was magic.”](https://sms4smile.com/quotes/aprilynne-pike/it-didn-t-matter-to-her-that-tamani-only-had-weak-magic-he-was-magic/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [“...I'm the last person to tell you that you need a guy to make you happy. But if you're not moving on because you're…](https://sms4smile.com/quotes/aprilynne-pike/i-m-the-last-person-to-tell-you-that-you-need-a-guy-to-make-you-happy/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [ “He exuded wisdom-even the wisest...were pale, flickering candles next to the nourishing solar illumination of \[his\] insights.” ](https://sms4smile.com/quotes/aprilynne-pike/he-exuded-wisdom-even-the-wisest-were-pale-flickering-candles-next-to/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [“You could be David's friend too". She glanced at Tamani when he said nothing. He was frowning. "The two of you really have a…](https://sms4smile.com/quotes/aprilynne-pike/you-could-be-david-s-friend-too-she-glanced-at-tamani-when-he-said/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [“Laurel rolled her eyes. “Now there‟s something I really wanted to know ” she said sarcastically. “Ah come on—everyone wonders.” “Do not ” “Sure.…](https://sms4smile.com/quotes/aprilynne-pike/laurel-rolled-her-eyes-now-there-s-something-i-really-wanted-to-know/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [“It's your call," he said softly, "but whatever you decide, I'll help you." He placed a soft, warm hand at the back of her…](https://sms4smile.com/quotes/aprilynne-pike/it-s-your-call-he-said-softly-but-whatever-you-decide-i-ll-help-you/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [“You live your life and continue with all of your normal activities. I'll keep you safe," he said stepping forward to sweep a lock…](https://sms4smile.com/quotes/aprilynne-pike/you-live-your-life-and-continue-with-all-of-your-normal-activities-i/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [“Tamani looked at her gravely, and reached up to tuck her hair behind her ear. He hesitated for an instant, then his hands found…](https://sms4smile.com/quotes/aprilynne-pike/tamani-looked-at-her-gravely-and-reached-up-to-tuck-her-hair-behind/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [“Paranormalcy seduced me. The two sexy paranormals who vie for Evie's affections each had their own victory; one won Evie's heart and the other…](https://sms4smile.com/quotes/aprilynne-pike/paranormalcy-seduced-me-the-two-sexy-paranormals-who-vie-for-evie-s/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [No - the light in Tamani's eyes was much more than a reflection. It was the fire that melted her anger and devastated her…](https://sms4smile.com/quotes/aprilynne-pike/no-the-light-in-tamani-s-eyes-was-much-more-than-a-reflection-it-was/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [“I think I could have won state today. Apparently, you put a troll on my heels and I turn into a superstar.”](https://sms4smile.com/quotes/aprilynne-pike/i-think-i-could-have-won-state-today-apparently-you-put-a-troll-on-my/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [“Tamani smiled softly and lifted a hand to her face, tucking a strand of hair behind her ear and letting his thumb rest on…](https://sms4smile.com/quotes/aprilynne-pike/tamani-smiled-softly-and-lifted-a-hand-to-her-face-tucking-a-strand/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

> [“Like...instinct?" At that Laurel flopped down on her back, a frustrated breath whooshing out of her. "Oh man, instinct, that's like the F-word in…](https://sms4smile.com/quotes/aprilynne-pike/like-instinct-at-that-laurel-flopped-down-on-her-back-a-frustrated/)

[Aprilynne Pike](https://sms4smile.com/quotes/author/aprilynne-pike/)

[Explore all 108 Aprilynne Pike quotes ](https://sms4smile.com/quotes/author/aprilynne-pike/)

## More Home quotes

> [Sentiment is the mightiest force in civilization; not sentimentality, but sentiment. Women will bring this into politics. Home, sweet home, is as powerful on…](https://sms4smile.com/quotes/judith-ellen-foster/sentiment-is-the-mightiest-force-in-civilization-not-sentimentality/)

[Judith Ellen Foster](https://sms4smile.com/quotes/author/judith-ellen-foster/)

> [I don't like being away from home. That's one reason why I don't work as much as I used to \[when I started my…](https://sms4smile.com/quotes/jane-powell/i-don-t-like-being-away-from-home-that-s-one-reason-why-i-don-t-work/)

[Jane Powell](https://sms4smile.com/quotes/author/jane-powell/)

> [“It is not the force of the wind, but the depth of the roots.”](https://sms4smile.com/quotes/craig-d-lounsbrough/it-is-not-the-force-of-the-wind-but-the-depth-of-the-roots/)

[Craig D. Lounsbrough](https://sms4smile.com/quotes/author/craig-d-lounsbrough/)

> [If your life's at a juncture and you need to think about things, there's nowhere better than home. However old you are.](https://sms4smile.com/quotes/sophie-kinsella/if-your-life-s-at-a-juncture-and-you-need-to-think-about-things-there/)

[Sophie Kinsella](https://sms4smile.com/quotes/author/sophie-kinsella/)

> [Most days, I go home and I feel rejuvenated. I feel ebullient.](https://sms4smile.com/quotes/siddhartha-mukherjee/most-days-i-go-home-and-i-feel-rejuvenated-i-feel-ebullient/)

[Siddhartha Mukherjee](https://sms4smile.com/quotes/author/siddhartha-mukherjee/)

> [If my campaign is not in the debate, we will not be talking about how we really fix this problem of endless and expanding…](https://sms4smile.com/quotes/jill-stein/if-my-campaign-is-not-in-the-debate-we-will-not-be-talking-about-how/)

[Jill Stein](https://sms4smile.com/quotes/author/jill-stein/)

> [Houses are like the human beings that inhabit them.](https://sms4smile.com/quotes/victor-hugo/houses-are-like-the-human-beings-that-inhabit-them/)

[Victor Hugo](https://sms4smile.com/quotes/author/victor-hugo/)

> [The house has to serve comfort. The work of art is revolutionary; the house is conservative.](https://sms4smile.com/quotes/adolf-loos/the-house-has-to-serve-comfort-the-work-of-art-is-revolutionary-the/)

[Adolf Loos](https://sms4smile.com/quotes/author/adolf-loos/)

> [I don't crave applause. I'm not one of those guys who comes alive on stage. I'm much more alive at home, I think.](https://sms4smile.com/quotes/david-bowie/i-don-t-crave-applause-i-m-not-one-of-those-guys-who-comes-alive-on/)

[David Bowie](https://sms4smile.com/quotes/author/david-bowie/)

> [A home is not a museum. It doesn't have to be furnished with Picasso paintings, or Sheraton suites, or Oriental rugs, or Chinese pottery.…](https://sms4smile.com/quotes/james-m-cain/a-home-is-not-a-museum-it-doesn-t-have-to-be-furnished-with-picasso/)

[James M. Cain](https://sms4smile.com/quotes/author/james-m-cain/)

> [As a child, I had a lot of older gay men taking care of me. There's a trust there. I feel like little girls…](https://sms4smile.com/quotes/margaret-cho/as-a-child-i-had-a-lot-of-older-gay-men-taking-care-of-me-there-s-a/)

[Margaret Cho](https://sms4smile.com/quotes/author/margaret-cho/)

> [Everything comes home, my mother used to say; every word spoken, every shadow cast, every footprint in the sand. It can't be helped; it's…](https://sms4smile.com/quotes/joanne-harris/everything-comes-home-my-mother-used-to-say-every-word-spoken-every/)

[Joanne Harris](https://sms4smile.com/quotes/author/joanne-harris/)

> [When you're in the middle of a pennant race, you can't go up there thinking about home runs.](https://sms4smile.com/quotes/sammy-sosa/when-you-re-in-the-middle-of-a-pennant-race-you-can-t-go-up-there/)

[Sammy Sosa](https://sms4smile.com/quotes/author/sammy-sosa/)

> [I write about presidents. That means I write about guys - so far. I'm interested in the people closest to them, the people they…](https://sms4smile.com/quotes/doris-kearns-goodwin/i-write-about-presidents-that-means-i-write-about-guys-so-far-i-m/)

[Doris Kearns Goodwin](https://sms4smile.com/quotes/author/doris-kearns-goodwin/)

> [You play a part, and as soon as a movie is over and the camera stops, you go home and you're not really responsible…](https://sms4smile.com/quotes/nastassja-kinski/you-play-a-part-and-as-soon-as-a-movie-is-over-and-the-camera-stops/)

[Nastassja Kinski](https://sms4smile.com/quotes/author/nastassja-kinski/)

[Browse all 25,855 Home quotes ](https://sms4smile.com/quotes/about/home/)

```json
{
    "@context": "https://schema.org",
    "@graph": [
        {
            "@type": "Quotation",
            "text": "Square root of a cosine? How is that ever going to be useful?",
            "creator": {
                "@type": "Person",
                "name": "Aprilynne Pike"
            },
            "isPartOf": {
                "@id": "https://sms4smile.com/quotes/#website"
            },
            "url": "https://sms4smile.com/quotes/aprilynne-pike/square-root-of-a-cosine-how-is-that-ever-going-to-be-useful/",
            "about": {
                "@type": "Thing",
                "name": "Home"
            },
            "@id": "https://sms4smile.com/quotes/aprilynne-pike/square-root-of-a-cosine-how-is-that-ever-going-to-be-useful/#quotation",
            "image": {
                "@type": "ImageObject",
                "@id": "https://sms4smile.com/quotes/i/9de/aprilynne-pike-4513_home_square-root-of-a-cosine-how-is-that-ever_899647.png",
                "contentUrl": "https://sms4smile.com/quotes/i/9de/aprilynne-pike-4513_home_square-root-of-a-cosine-how-is-that-ever_899647.png",
                "url": "https://sms4smile.com/quotes/i/9de/aprilynne-pike-4513_home_square-root-of-a-cosine-how-is-that-ever_899647.png",
                "width": 1080,
                "height": 1080,
                "caption": "“Square root of a cosine? How is that ever going to be useful?” — Aprilynne Pike",
                "creditText": "SMS4Smile Quotes",
                "creator": {
                    "@id": "https://sms4smile.com/quotes/#organization"
                }
            }
        },
        {
            "@type": "BreadcrumbList",
            "itemListElement": [
                {
                    "@type": "ListItem",
                    "position": 1,
                    "name": "Home",
                    "item": "https://sms4smile.com/"
                },
                {
                    "@type": "ListItem",
                    "position": 2,
                    "name": "Quotes",
                    "item": "https://sms4smile.com/quotes/"
                },
                {
                    "@type": "ListItem",
                    "position": 3,
                    "name": "Aprilynne Pike",
                    "item": "https://sms4smile.com/quotes/author/aprilynne-pike/"
                },
                {
                    "@type": "ListItem",
                    "position": 4,
                    "name": "Square root of a cosine? How...",
                    "item": "https://sms4smile.com/quotes/aprilynne-pike/square-root-of-a-cosine-how-is-that-ever-going-to-be-useful/"
                }
            ],
            "@id": "https://sms4smile.com/quotes/aprilynne-pike/square-root-of-a-cosine-how-is-that-ever-going-to-be-useful/#breadcrumb"
        },
        {
            "@type": "WebSite",
            "@id": "https://sms4smile.com/quotes/#website",
            "name": "SMS4Smile Quotes",
            "url": "https://sms4smile.com/quotes/",
            "publisher": {
                "@id": "https://sms4smile.com/quotes/#organization"
            }
        },
        {
            "@type": "Organization",
            "@id": "https://sms4smile.com/quotes/#organization",
            "name": "SMS4Smile Quotes",
            "url": "https://sms4smile.com/quotes/",
            "logo": {
                "@type": "ImageObject",
                "url": "https://sms4smile.com/quotes/wp-content/themes/sq/assets/icons/icon-512.png",
                "width": 512,
                "height": 512
            }
        }
    ]
}
```
