3Blue1Brown

What is Euler's formula actually saying? | Ep. 4 Lockdown live math

Published 28 Apr 2020 · 26 daily observations recorded · last updated 2026-09-29

Views
1,690,111
Avg views / hour
30.0
since publish (lifetime average)
Recent velocity
13.3
+318 views over 24h (2026-09-28 → 2026-09-29)
vs channel baseline
—
Channel median
—

Recent growth

Last 7 days
+2,498 views
measured 2026-09-22 → 2026-09-29 (168h)
Last 30 days
+12,812 views
measured 2026-08-27 → 2026-09-29 (792h)

Performance history

Every observation TubeSum recorded, plotted as measured.

Views over time — 26 observed points, 1.7M to 1.7M views 0 592K 1.2M 1.8M Aug 10, 2026 · 1,673,942 views Aug 17, 2026 · 1,675,281 views Aug 27, 2026 · 1,677,299 views Aug 31, 2026 · 1,678,734 views Sep 1, 2026 · 1,679,179 views Sep 4, 2026 · 1,680,486 views Sep 7, 2026 · 1,681,703 views Sep 11, 2026 · 1,683,452 views Sep 12, 2026 · 1,683,882 views Sep 13, 2026 · 1,684,207 views Sep 14, 2026 · 1,684,622 views Sep 15, 2026 · 1,685,017 views Sep 16, 2026 · 1,685,420 views Sep 17, 2026 · 1,685,883 views Sep 18, 2026 · 1,686,318 views Sep 19, 2026 · 1,686,590 views Sep 20, 2026 · 1,686,954 views Sep 21, 2026 · 1,687,383 views Sep 22, 2026 · 1,687,613 views Sep 23, 2026 · 1,687,944 views Sep 24, 2026 · 1,688,277 views Sep 25, 2026 · 1,688,683 views Sep 26, 2026 · 1,688,997 views Sep 27, 2026 · 1,689,391 views Sep 28, 2026 · 1,689,793 views Sep 29, 2026 · 1,690,111 views Aug 10 Sep 16 Sep 29

Based on 26 observations · last observed Sep 29, 2026 · straight lines connect consecutive observations — TubeSum does not measure the days between them.

All observations

The same points the chart plots, as exact numbers. Gaps mean no observation was taken that day.

Date Views Avg views / hour Channel median
2026-09-29 1,690,111 30.0 —
2026-09-28 1,689,793 30.0 —
2026-09-27 1,689,391 30.1 —
2026-09-26 1,688,997 30.1 —
2026-09-25 1,688,683 30.1 —
2026-09-24 1,688,277 30.1 —
2026-09-23 1,687,944 30.1 —
2026-09-22 1,687,613 30.1 —
2026-09-21 1,687,383 30.1 —
2026-09-20 1,686,954 30.1 —
2026-09-19 1,686,590 30.1 —
2026-09-18 1,686,318 30.1 —
2026-09-17 1,685,883 30.1 —
2026-09-16 1,685,420 30.1 —
2026-09-15 1,685,017 30.1 —
2026-09-14 1,684,622 30.1 —
2026-09-13 1,684,207 30.1 —
2026-09-12 1,683,882 30.1 —
2026-09-11 1,683,452 30.1 —
2026-09-07 1,681,703 30.2 —
2026-09-04 1,680,486 30.2 —
2026-09-01 1,679,179 30.2 —
2026-08-31 1,678,734 30.2 —
2026-08-27 1,677,299 30.2 —
2026-08-17 1,675,281 30.3 1,262,848
2026-08-10 1,673,942 30.4 1,262,848

Content analysis

Transcript, chapters and structure for this video live on its analysis page — performance and content are separate documents on TubeSum.

Read transcript & analysis →