Official speed |
96.75 wpm (107.16 seconds elapsed during race) |
Without ending ping |
97.08 wpm (360 ms delay sending score to TypeRacer’s server) |
Timerless |
97.13 wpm (57 ms elapsed before first character typed; 106.75 seconds elapsed during race) |
Timerless minus one |
97.02 wpm, ignoring the first character typed |
Race Start |
March 17, 2024 8:15:32pm UTC |
Race Finish |
March 17, 2024 8:17:20pm UTC |
Outcome |
No win (2 of 4) |
Accuracy |
97.2% |
Points |
261.23 |
Text |
#4940058 (Length: 864 characters) Calculus is a tool that helps us understand how a change in one quantity is related to a change in another. How does the speed of a falling object change as a function of time? How does the level of water in a barrel change as a function of the amount of liquid poured into it? We see change occurring in nearly everything we observe in the world and universe, and powerful modern instruments help us see more and more. In this section we introduce the ideas of average and instantaneous rates of change, and show that they are closely related to the slope of a curve at a point P on the curve. We give precise developments of these important concepts in the next chapter, but for now we use an informal approach so you will see how they lead naturally to the main idea of this chapter, the limit. The idea of a limit plays a foundational role throughout calculus. |
Characters typed |
alCalculus is a tool that helps uns understand how a change is n one wqquantitiy iy is related to a change in another . How does the speed of a falling aoobject change as a function of time? How does the level of water in a barrleel change as a function of the amount of liquid poured into it? We see change occuring ring in nearly everything we observer in t in the world and universe, and powerful modern instruments help us see more and more. IN thin this section we introduce the ideas of average and instatnntaneous rates of change, and show that they wer eare clsoelosely related to the slope of a curve at a point P on the curve. We give praecise developments of these important icconcepts in the next chapter, but for now we use an informal approach so you will see how they lead naturally to the main idea of this cah=hahaptureer, the limit, . The idea of a limit plays a foundational role throughout clalculus. |
Timing |
Character |
a |
l |
-l |
-a |
C |
a |
l |
c |
u |
l |
u |
s |
|
i |
s |
|
a |
|
t |
o |
o |
l |
|
t |
h |
Milliseconds |
57 |
117 |
530 |
130 |
236 |
101 |
67 |
134 |
83 |
129 |
141 |
223 |
109 |
112 |
103 |
52 |
145 |
71 |
119 |
101 |
150 |
160 |
53 |
86 |
67 |
Character |
a |
t |
|
h |
e |
l |
p |
s |
|
u |
n |
-n |
s |
|
u |
n |
d |
e |
r |
s |
t |
a |
n |
d |
|
Milliseconds |
84 |
64 |
0 |
129 |
165 |
69 |
154 |
118 |
97 |
116 |
185 |
312 |
91 |
51 |
120 |
144 |
65 |
147 |
66 |
84 |
101 |
118 |
69 |
66 |
65 |
Character |
h |
o |
w |
|
a |
|
c |
h |
a |
n |
g |
e |
|
i |
s |
|
- |
-s |
n |
|
o |
n |
e |
|
w |
Milliseconds |
85 |
67 |
78 |
19 |
174 |
42 |
179 |
72 |
100 |
50 |
295 |
171 |
94 |
140 |
229 |
104 |
299 |
117 |
128 |
90 |
100 |
70 |
89 |
77 |
209 |
Character |
q |
-q |
-w |
q |
u |
a |
n |
t |
i |
t |
i |
y |
|
i |
-i |
- |
-y |
-i |
y |
|
i |
s |
|
r |
e |
Milliseconds |
87 |
211 |
123 |
42 |
128 |
72 |
101 |
74 |
100 |
99 |
84 |
116 |
82 |
99 |
237 |
131 |
135 |
117 |
175 |
58 |
120 |
54 |
84 |
136 |
73 |
Character |
l |
a |
t |
e |
d |
|
t |
o |
|
a |
|
c |
h |
a |
n |
g |
e |
|
i |
n |
|
a |
n |
o |
t |
Milliseconds |
67 |
131 |
88 |
88 |
146 |
99 |
89 |
74 |
70 |
96 |
118 |
114 |
86 |
67 |
86 |
79 |
107 |
44 |
84 |
83 |
73 |
127 |
69 |
113 |
59 |
Character |
h |
e |
r |
|
- |
. |
|
H |
o |
w |
|
d |
o |
e |
s |
|
t |
h |
e |
|
s |
p |
e |
e |
d |
Milliseconds |
142 |
120 |
80 |
117 |
330 |
456 |
113 |
210 |
143 |
64 |
83 |
120 |
67 |
97 |
79 |
58 |
96 |
67 |
70 |
65 |
101 |
76 |
167 |
149 |
166 |
Character |
|
o |
f |
|
a |
|
f |
a |
l |
l |
i |
n |
g |
|
a |
o |
-o |
-a |
o |
b |
j |
e |
c |
t |
|
Milliseconds |
28 |
114 |
91 |
72 |
134 |
85 |
129 |
84 |
67 |
147 |
118 |
70 |
65 |
71 |
170 |
72 |
274 |
133 |
177 |
106 |
85 |
113 |
181 |
102 |
64 |
Character |
c |
h |
a |
n |
g |
e |
|
a |
s |
|
a |
|
f |
u |
n |
c |
t |
i |
o |
n |
|
o |
f |
|
t |
Milliseconds |
305 |
63 |
88 |
89 |
107 |
162 |
82 |
190 |
91 |
91 |
121 |
70 |
91 |
52 |
150 |
48 |
117 |
45 |
72 |
83 |
89 |
79 |
106 |
38 |
154 |
Character |
i |
m |
e |
? |
|
H |
o |
w |
|
d |
o |
e |
s |
|
t |
h |
e |
|
l |
e |
v |
e |
l |
|
o |
Milliseconds |
29 |
68 |
83 |
264 |
58 |
184 |
81 |
84 |
82 |
135 |
66 |
133 |
101 |
166 |
117 |
83 |
99 |
68 |
116 |
67 |
153 |
93 |
36 |
95 |
108 |
Character |
f |
|
w |
a |
t |
e |
r |
|
i |
n |
|
a |
|
b |
a |
r |
r |
l |
e |
-e |
-l |
e |
l |
|
c |
Milliseconds |
64 |
85 |
131 |
153 |
76 |
143 |
61 |
36 |
99 |
83 |
66 |
62 |
105 |
99 |
152 |
145 |
176 |
117 |
44 |
367 |
117 |
167 |
101 |
98 |
82 |
Character |
h |
a |
n |
g |
e |
|
a |
s |
|
a |
|
f |
u |
n |
c |
t |
i |
o |
n |
|
o |
f |
|
t |
h |
Milliseconds |
70 |
72 |
87 |
206 |
147 |
53 |
148 |
83 |
85 |
227 |
104 |
120 |
88 |
124 |
55 |
104 |
46 |
48 |
69 |
77 |
111 |
110 |
47 |
105 |
49 |
Character |
e |
|
a |
m |
o |
u |
n |
t |
|
o |
f |
|
l |
i |
q |
u |
i |
d |
|
p |
o |
u |
r |
e |
d |
Milliseconds |
54 |
46 |
100 |
95 |
153 |
102 |
164 |
69 |
61 |
107 |
82 |
100 |
76 |
74 |
229 |
114 |
74 |
88 |
106 |
271 |
169 |
81 |
83 |
169 |
163 |
Character |
|
i |
n |
t |
o |
|
i |
t |
? |
|
W |
e |
|
s |
e |
e |
|
c |
h |
a |
n |
g |
e |
|
o |
Milliseconds |
35 |
83 |
56 |
145 |
395 |
121 |
164 |
53 |
264 |
96 |
206 |
164 |
71 |
100 |
82 |
152 |
91 |
327 |
97 |
55 |
96 |
66 |
101 |
51 |
113 |
Character |
c |
c |
u |
r |
i |
n |
g |
|
- |
-g |
-n |
-i |
r |
i |
n |
g |
|
i |
n |
|
n |
e |
a |
r |
l |
Milliseconds |
164 |
151 |
87 |
95 |
104 |
50 |
116 |
71 |
325 |
131 |
121 |
136 |
133 |
105 |
99 |
68 |
45 |
102 |
75 |
71 |
121 |
82 |
132 |
83 |
101 |
Character |
y |
|
e |
v |
e |
r |
y |
t |
h |
i |
n |
g |
|
w |
e |
|
o |
b |
s |
e |
r |
v |
e |
r |
|
Milliseconds |
116 |
94 |
539 |
151 |
132 |
69 |
33 |
116 |
63 |
95 |
40 |
67 |
49 |
84 |
67 |
67 |
167 |
112 |
172 |
83 |
99 |
203 |
148 |
65 |
34 |
Character |
i |
n |
|
t |
-t |
- |
-n |
-i |
- |
-r |
|
i |
n |
|
t |
h |
e |
|
w |
o |
r |
l |
d |
|
a |
Milliseconds |
101 |
82 |
69 |
34 |
280 |
134 |
134 |
133 |
131 |
135 |
132 |
112 |
73 |
69 |
48 |
78 |
39 |
72 |
330 |
87 |
98 |
63 |
99 |
35 |
133 |
Character |
n |
d |
|
u |
n |
i |
v |
e |
r |
s |
e |
, |
|
a |
n |
d |
|
p |
o |
w |
e |
r |
f |
u |
l |
Milliseconds |
66 |
67 |
45 |
119 |
140 |
83 |
50 |
148 |
80 |
67 |
67 |
69 |
65 |
100 |
83 |
101 |
83 |
99 |
161 |
71 |
34 |
67 |
143 |
75 |
95 |
Character |
|
m |
o |
d |
e |
r |
n |
|
i |
n |
s |
t |
r |
u |
m |
e |
n |
t |
s |
|
h |
e |
l |
p |
|
Milliseconds |
77 |
84 |
87 |
107 |
152 |
74 |
90 |
67 |
118 |
82 |
98 |
95 |
141 |
47 |
156 |
78 |
99 |
84 |
64 |
106 |
283 |
90 |
113 |
233 |
162 |
Character |
u |
s |
|
s |
e |
e |
|
m |
o |
r |
e |
|
a |
n |
d |
|
m |
o |
r |
e |
. |
|
I |
N |
|
Milliseconds |
112 |
87 |
68 |
296 |
391 |
160 |
37 |
115 |
96 |
53 |
67 |
35 |
146 |
44 |
63 |
62 |
100 |
86 |
31 |
67 |
83 |
84 |
133 |
75 |
72 |
Character |
t |
h |
i |
-i |
-h |
-t |
- |
-N |
n |
|
t |
h |
i |
s |
|
s |
e |
c |
t |
i |
o |
n |
|
w |
e |
Milliseconds |
86 |
83 |
59 |
270 |
138 |
137 |
128 |
129 |
155 |
103 |
149 |
62 |
49 |
104 |
51 |
117 |
87 |
178 |
83 |
71 |
73 |
75 |
60 |
78 |
73 |
Character |
|
i |
n |
t |
r |
o |
d |
u |
c |
e |
|
t |
h |
e |
|
i |
d |
e |
a |
s |
|
o |
f |
|
a |
Milliseconds |
38 |
132 |
65 |
71 |
133 |
42 |
185 |
104 |
136 |
166 |
65 |
167 |
67 |
82 |
56 |
116 |
102 |
164 |
113 |
114 |
85 |
95 |
89 |
85 |
184 |
Character |
v |
e |
r |
a |
g |
e |
|
a |
n |
d |
|
i |
n |
s |
t |
a |
t |
n |
-n |
-t |
n |
t |
a |
n |
e |
Milliseconds |
202 |
212 |
94 |
137 |
79 |
140 |
35 |
99 |
83 |
22 |
82 |
96 |
52 |
43 |
82 |
128 |
82 |
51 |
378 |
111 |
245 |
108 |
247 |
203 |
119 |
Character |
o |
u |
s |
|
r |
a |
t |
e |
s |
|
o |
f |
|
c |
h |
a |
n |
g |
e |
, |
|
a |
n |
d |
|
Milliseconds |
242 |
93 |
99 |
87 |
117 |
134 |
105 |
108 |
82 |
89 |
117 |
43 |
99 |
97 |
85 |
87 |
66 |
99 |
122 |
80 |
545 |
138 |
71 |
61 |
85 |
Character |
s |
h |
o |
w |
|
t |
h |
a |
t |
|
t |
h |
e |
y |
|
w |
e |
r |
|
e |
-e |
- |
-r |
-e |
-w |
Milliseconds |
95 |
103 |
0 |
100 |
66 |
164 |
75 |
105 |
75 |
51 |
193 |
87 |
89 |
61 |
68 |
135 |
66 |
83 |
98 |
43 |
278 |
146 |
134 |
246 |
186 |
Character |
a |
r |
e |
|
c |
l |
s |
o |
e |
l |
-l |
-e |
-o |
-s |
o |
s |
e |
l |
y |
|
r |
e |
l |
a |
t |
Milliseconds |
149 |
68 |
88 |
31 |
165 |
47 |
162 |
0 |
183 |
113 |
259 |
137 |
131 |
334 |
167 |
83 |
70 |
80 |
166 |
79 |
72 |
51 |
98 |
50 |
86 |
Character |
e |
d |
|
t |
o |
|
t |
h |
e |
|
s |
l |
o |
p |
e |
|
o |
f |
|
a |
|
c |
u |
r |
v |
Milliseconds |
81 |
129 |
86 |
100 |
73 |
81 |
48 |
84 |
81 |
35 |
106 |
44 |
155 |
128 |
85 |
33 |
126 |
41 |
80 |
95 |
92 |
514 |
148 |
85 |
167 |
Character |
e |
|
a |
t |
|
a |
|
p |
o |
i |
n |
t |
|
P |
|
o |
n |
|
t |
h |
e |
|
c |
u |
r |
Milliseconds |
101 |
37 |
144 |
69 |
29 |
138 |
70 |
309 |
223 |
96 |
36 |
98 |
78 |
248 |
171 |
215 |
98 |
74 |
54 |
56 |
40 |
50 |
145 |
50 |
71 |
Character |
v |
e |
. |
|
W |
e |
|
g |
i |
v |
e |
|
p |
r |
a |
-a |
e |
c |
i |
s |
e |
|
d |
e |
v |
Milliseconds |
182 |
95 |
28 |
68 |
271 |
155 |
84 |
134 |
100 |
83 |
106 |
29 |
98 |
157 |
106 |
250 |
125 |
176 |
83 |
154 |
83 |
78 |
120 |
166 |
118 |
Character |
e |
l |
o |
p |
m |
e |
n |
t |
s |
|
o |
f |
|
t |
h |
e |
s |
e |
|
i |
m |
p |
o |
r |
t |
Milliseconds |
83 |
69 |
149 |
133 |
100 |
147 |
83 |
96 |
91 |
60 |
54 |
104 |
51 |
102 |
56 |
56 |
98 |
70 |
65 |
107 |
93 |
100 |
151 |
71 |
148 |
Character |
a |
n |
t |
|
i |
c |
-c |
-i |
c |
o |
n |
c |
e |
p |
t |
s |
|
i |
n |
|
t |
h |
e |
|
n |
Milliseconds |
85 |
83 |
100 |
478 |
228 |
117 |
205 |
104 |
121 |
59 |
65 |
67 |
165 |
81 |
104 |
92 |
75 |
115 |
69 |
68 |
66 |
51 |
73 |
74 |
61 |
Character |
e |
x |
t |
|
c |
h |
a |
p |
t |
e |
r |
, |
|
b |
u |
t |
|
f |
o |
r |
|
n |
o |
w |
|
Milliseconds |
57 |
367 |
115 |
38 |
147 |
64 |
85 |
69 |
82 |
115 |
85 |
18 |
64 |
134 |
96 |
92 |
51 |
130 |
92 |
77 |
0 |
97 |
79 |
40 |
77 |
Character |
w |
e |
|
u |
s |
e |
|
a |
n |
|
i |
n |
f |
o |
r |
m |
a |
l |
|
a |
p |
p |
r |
o |
a |
Milliseconds |
118 |
62 |
110 |
135 |
64 |
68 |
79 |
183 |
67 |
84 |
115 |
82 |
70 |
89 |
61 |
109 |
96 |
76 |
100 |
116 |
83 |
117 |
99 |
84 |
20 |
Character |
c |
h |
|
s |
o |
|
y |
o |
u |
|
w |
i |
l |
l |
|
s |
e |
e |
|
h |
o |
w |
|
t |
h |
Milliseconds |
178 |
112 |
223 |
196 |
71 |
78 |
117 |
82 |
92 |
36 |
36 |
95 |
136 |
149 |
79 |
28 |
158 |
179 |
82 |
136 |
69 |
104 |
50 |
226 |
71 |
Character |
e |
y |
|
l |
e |
a |
d |
|
n |
a |
t |
u |
r |
a |
l |
l |
y |
|
t |
o |
|
t |
h |
e |
|
Milliseconds |
64 |
83 |
67 |
67 |
67 |
101 |
83 |
82 |
150 |
101 |
121 |
112 |
67 |
66 |
51 |
133 |
117 |
82 |
52 |
73 |
91 |
118 |
57 |
89 |
70 |
Character |
m |
a |
i |
n |
|
i |
d |
e |
a |
|
o |
f |
|
t |
h |
i |
s |
|
c |
a |
h |
-h |
= |
h |
a |
Milliseconds |
100 |
66 |
84 |
66 |
86 |
110 |
52 |
182 |
97 |
41 |
97 |
87 |
33 |
149 |
50 |
51 |
99 |
82 |
219 |
133 |
115 |
365 |
283 |
167 |
97 |
Character |
-a |
-h |
-= |
-a |
h |
a |
p |
t |
u |
r |
e |
-e |
-r |
-u |
e |
r |
, |
|
t |
h |
e |
|
l |
i |
m |
Milliseconds |
169 |
140 |
130 |
113 |
153 |
83 |
52 |
133 |
116 |
100 |
66 |
239 |
127 |
134 |
151 |
94 |
105 |
49 |
96 |
56 |
55 |
45 |
66 |
49 |
133 |
Character |
i |
t |
, |
|
- |
-, |
. |
|
T |
h |
e |
|
i |
d |
e |
a |
|
o |
f |
|
a |
|
l |
i |
m |
Milliseconds |
134 |
101 |
150 |
100 |
393 |
149 |
183 |
79 |
177 |
51 |
110 |
24 |
84 |
148 |
183 |
96 |
38 |
134 |
85 |
90 |
59 |
115 |
68 |
87 |
114 |
Character |
i |
t |
|
p |
l |
a |
y |
s |
|
a |
|
f |
o |
u |
n |
d |
a |
t |
i |
o |
n |
a |
l |
|
r |
Milliseconds |
82 |
83 |
61 |
106 |
134 |
92 |
91 |
84 |
98 |
116 |
85 |
100 |
37 |
64 |
149 |
262 |
120 |
183 |
101 |
76 |
72 |
110 |
92 |
66 |
106 |
Character |
o |
l |
e |
|
t |
h |
r |
o |
u |
g |
h |
o |
u |
t |
|
c |
l |
-l |
a |
l |
c |
u |
l |
u |
s |
Milliseconds |
48 |
146 |
68 |
43 |
121 |
48 |
124 |
38 |
43 |
131 |
52 |
202 |
88 |
253 |
139 |
215 |
68 |
399 |
183 |
68 |
168 |
82 |
198 |
248 |
102 |
Character |
. |
Milliseconds |
87 |
|
WPM Timing |
Seconds |
WPM |
2.14 |
50.39 |
4.29 |
86.78 |
6.43 |
93.32 |
8.57 |
83.98 |
10.72 |
79.51 |
12.86 |
83.05 |
15 |
84.78 |
17.15 |
87.48 |
19.29 |
87.09 |
21.43 |
88.46 |
23.58 |
92.13 |
25.72 |
94.25 |
27.86 |
93.03 |
30.01 |
94.78 |
32.15 |
97.05 |
34.29 |
96.23 |
36.44 |
96.17 |
38.58 |
94.25 |
40.72 |
94.59 |
42.87 |
93.22 |
45.01 |
93.58 |
47.15 |
95.44 |
49.29 |
96.16 |
51.44 |
95.88 |
53.58 |
94.51 |
55.72 |
96.04 |
57.87 |
96.22 |
60.01 |
95.78 |
62.15 |
95.95 |
64.3 |
96.3 |
66.44 |
94.64 |
68.58 |
93.26 |
70.73 |
94.5 |
72.87 |
94.52 |
75.01 |
95.02 |
77.16 |
94.72 |
79.3 |
95.48 |
81.44 |
94.74 |
83.59 |
95.47 |
85.73 |
96.72 |
87.87 |
97.23 |
90.02 |
97.72 |
92.16 |
98.57 |
94.3 |
99.13 |
96.45 |
97.42 |
98.59 |
96.89 |
100.73 |
96.85 |
102.88 |
97.17 |
105.02 |
97.7 |
107.16 |
96.75 |
|