MathGraph - 함수 그래프 계산기

HeoJunseo

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About this app

MathGraph is an educational graphing calculator that draws a graph immediately when you input a function.

From linear functions learned in middle and high school mathematics to trigonometric functions, you can understand the shapes of functions by drawing and manipulating graphs yourself.

■ Easy Formula Input Like a Calculator

· Just input in the order you press the keys, like x^2+1. There is no need to fill in blanks.

· Tap the desired location in the formula to move the cursor there, allowing you to make corrections immediately.

· The graph is drawn in real-time while you input.

· Supports sin, cos, tan, log, ln, √, absolute value, π, and e.

■ Graphs Moved with Sliders

· Sliders appear automatically when you input a, b, c, d, k, and m, such as in y = a sin(bx).

· Moving the sliders changes the graph immediately, allowing you to visually see how the coefficients affect the graph.

· Press the play button to automatically move the values.

■ Automatic Display of Roots, Maxima, Minima, and Intersections

· Tap the curve to find and display roots, y-intercepts, maximums, and minimums.

· It also automatically finds intersection points where two graphs meet.

· Tapping a point displays coordinates, such as "Minimum (0.00, -4.00)".

· Press and hold the curve to move it and check the coordinates as you follow the curve.

■ Templates for Entering Coefficients Only (Beginner Mode)

· 7 templates for linear, quadratic, cubic, rational, exponential, logarithmic, and trigonometric functions.

· Enter only the coefficients to draw a graph, and it also displays an explanation of the role each coefficient plays in the graph.

(Example: Trigonometric function b → "The period is 2π/|b|. The larger the value, the denser the waves become.")

■ Compare Multiple Functions on One Screen

· You can draw multiple functions together for comparison.

· Each function is assigned a different color, and you can tap the colored dot to hide or show the graph. · Added functions are automatically saved and remain intact the next time you open the app.

■ Convenient Graph Screen
· Zoom in and out with two fingers, and move by dragging
· Buttons for zooming in, zooming out, and returning to the origin
· Displays decimal scales like 0.5 and 0.1 when zoomed in
· Accurately draws asymptotes such as tan x and 1/x.

■ Graph Image Sharing
· Save graphs as images with a single button and share them via messenger or note apps.

■ Recommended for:
· Middle and high school students studying for function graph homework or exams
· Teachers who want to show how graphs change depending on coefficients
· Anyone who wants to check graphs simply

Supports Dark Mode and tablet screen.

What’s new

2.0.1 업데이트 – 수학 그래프가 완전히 새로워졌어요!

• 계산기처럼 쉬운 수식 입력: x^2+1을 순서대로 누르면 끝. 원하는 위치를 탭해 바로 고칠 수 있어요
• 입력하는 동안 그래프 실시간 미리보기
• 매개변수 슬라이더: a·sin(bx)처럼 문자를 넣고 값을 움직이며 그래프 변화를 관찰해요 (자동 재생 지원)
• 곡선을 탭하면 근·극대·극소·y절편 표시
• 곡선을 길게 눌러 따라가며 좌표 확인
• 지수·로그·삼각함수 템플릿과 계수별 설명 추가
• 그래프 이미지 공유
• 함수 목록 자동 저장
• 라이트/다크 테마, 가로 모드 입력, 확대·축소 개선
• 음수 계수·유리함수 그래프 오류 등 버그 수정