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d:/XHJ/mathmo/MCM2026/20260116/vscode/picture.tex:19: Package pgfkeys Error: The key '/tikz/variable' requires a value. I am going to ignore this key.
See the pgfkeys package documentation for explanation.
Type H <return> for immediate help.
...
l.19 \node[variable]
(ntotal) {$N_{total} = 730$};
This error message was generated by an \errmessage
command, so I can't give any explicit help.
Pretend that you're Hercule Poirot: Examine all clues,
and deduce the truth by order and method.
LaTeX Font Info: External font `cmex10' loaded for size
(Font) <7> on input line 19.
LaTeX Font Info: External font `cmex10' loaded for size
(Font) <5> on input line 19.
d:/XHJ/mathmo/MCM2026/20260116/vscode/picture.tex:20: Package pgfkeys Error: The key '/tikz/variable' requires a value. I am going to ignore this key.
See the pgfkeys package documentation for explanation.
Type H <return> for immediate help.
...
l.20 \node[variable, below=of ntotal]
(kbase) {$k_{base} \in [5, 10]$};
(That was another \errmessage.)
LaTeX Font Info: External font `cmex10' loaded for size
(Font) <9> on input line 23.
LaTeX Font Info: External font `cmex10' loaded for size
(Font) <6> on input line 23.
d:/XHJ/mathmo/MCM2026/20260116/vscode/picture.tex:26: Package pgfkeys Error: The key '/tikz/variable' requires a value. I am going to ignore this key.
See the pgfkeys package documentation for explanation.
Type H <return> for immediate help.
...
l.26 \node[variable, right=of nfree]
(kie) {
(That was another \errmessage.)
d:/XHJ/mathmo/MCM2026/20260116/vscode/picture.tex:27: Undefined control sequence.
l.27 $k_{i_e} = k_{base} + \text
{round}\left(N_{free} \cdot \frac{D_...
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.
d:/XHJ/mathmo/MCM2026/20260116/vscode/picture.tex:40: Package pgfkeys Error: The key '/tikz/variable' requires a value. I am going to ignore this key.
See the pgfkeys package documentation for explanation.
Type H <return> for immediate help.
...
l.40 \node[variable, left=of score]
(gini) {
(That was another \errmessage.)
d:/XHJ/mathmo/MCM2026/20260116/vscode/picture.tex:63: Package pgfkeys Error: I do not know the key '/tikz/fit', to which you passed '(ntotal) (kbase) (kie)', and I am going to ignore it. Perhaps you misspelled it.
See the pgfkeys package documentation for explanation.
Type H <return> for immediate help.
...
l.63 ... (fairbox) [fit=(ntotal) (kbase) (kie)]
{};
(That was another \errmessage.)
d:/XHJ/mathmo/MCM2026/20260116/vscode/picture.tex:67: Package pgfkeys Error: I do not know the key '/tikz/fit', to which you passed '(eff) (score) (gini) (judge)', and I am going to ignore it. Perhaps you misspelled it.
See the pgfkeys package documentation for explanation.
Type H <return> for immediate help.
...
l.67 ...effbox) [fit=(eff) (score) (gini) (judge)]
{};
(That was another \errmessage.)
[1
Non-PDF special ignored!
<special> papersize=538.80806pt,247.52835pt
{c:/texlive/texlive/2025/texmf-var/fonts/map/pdftex/updmap/pdftex.map}] (./picture.aux)
***********
LaTeX2e <2024-11-01> patch level 2
L3 programming layer <2025-01-18>
***********
)
Here is how much of TeX's memory you used:
13523 strings out of 473190
288281 string characters out of 5715811
666049 words of memory out of 5000000
36561 multiletter control sequences out of 15000+600000
560968 words of font info for 43 fonts, out of 8000000 for 9000
1141 hyphenation exceptions out of 8191
117i,8n,121p,508b,855s stack positions out of 10000i,1000n,20000p,200000b,200000s
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Output written on picture.pdf (1 page, 152892 bytes).
PDF statistics:
86 PDF objects out of 1000 (max. 8388607)
52 compressed objects within 1 object stream
0 named destinations out of 1000 (max. 500000)
13 words of extra memory for PDF output out of 10000 (max. 10000000)