Sakrekenaar
Plot funksies op 'n interaktiewe grafiek ericle grafiek vry aanlyn grafieking sakrekenaar, geen teken-up.
y = f(x), e.g. x^2-3, sin(x), 2*x+1
Aangaande hierdie sakrekenaar
A graphing calculator draws the graph of one or more functions of x. Enter equations like y = x^2 - 3 or sin(x), and the calculator plots them on an interactive grid you can zoom and pan. Add several functions at once to compare them, each in its own colour.
It evaluates each function at many x-values across the visible window and joins the points into a smooth curve, redrawing as you scroll to zoom or drag to pan so the axes and grid always rescale to what you are looking at. Any expression the scientific calculator understands works here — polynomials, trigonometry, logarithms, exponentials, roots and combinations — and each function you add is drawn in a distinct colour so several curves can be compared on one grid.
For a worked example, plotting y = x^2 - 3 gives an upward parabola whose lowest point sits at (0, -3) and which crosses the x-axis near x = -1.73 and x = 1.73 (where x^2 = 3). Add y = x - 1 on the same grid and the two curves meet where a line crosses the parabola, giving a visual solution to x^2 - 3 = x - 1. It is used to explore the shape of a function, find roots and intercepts, spot maxima and minima, and see where two graphs intersect.
Dikwels gevra vrae
Hoe gaan ek'n funksie in?
Tipe 'n uitdrukking in x, soos x^2, sinenenix) of 2*x+1, in die grafieking sakrekenaar. Jy kan voeg by veelvuldige funksies en elkeen word geteken in' n ander kleur.
Kan ek zoem en pan?
Ja. Rol of gebruik die zoemknoppies om te zoem, en trek die grafiek om te pan. Die byle en rooster reskaal automaties.
Watter funksies kan ek beplan?
Enige uitdrukking wat die wetenskaplike sakrekenaar gebruik, ondersteun powernomisionale, trig, logs, eksponent, wortels en kombinasies daarvan.
Hoe beplan ek twee funksies om te vind waar hulle mekaar kruis?
Invoer elke funksie op sy eie lyn, vir voorbeeld y = x^2 - 3 en y = x - 1. Beide kurwes word getrek op dieselfde rooster, en die punte waar hulle kruis is die oplossings vir die twee uitdrukkings wat gelyk is.
Hoe skets ek 'n parabola soos y = x^2 - 3?
Type x^2 - 3 as the function. The result is a U-shaped parabola with its vertex at (0, -3); zoom out or pan to see where it crosses the x-axis near ±1.73.
Kan ek tringonome funksies beplan?
Yes. Enter sin(x), cos(x) or tan(x) and the wave is drawn across the window. Combine them with other terms, such as sin(x) + x/2, to see the combined shape.
Waarom lyk my grafiek leeg of plat?
Die kurwe lê dalk buite die huidige aansig. Zoem uit of pan totdat dit kom in omvang illa vir steil of groot-waarde funksies jy dikwels benodig na uitzoem op die y-as na sien die hele vorm.
Die resultate is skattings van algemene leiding, nie net finansiële, mediese of belastingvoorligting nie.