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https://github.com/szdytom/LADRSolutions.git
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better note
Signed-off-by: szdytom <szdytom@qq.com>
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@ -30,7 +30,7 @@
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&= alpha (beta lambda) $
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]
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#note[注:复数乘法的交换律由原书例1.4给出。]
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#note[复数乘法的交换律由原书例1.4给出。]
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#exercise_sol(type: "proof")[
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#tab 证明:$lambda (alpha + beta) = lambda alpha + lambda beta$ 对所有 $lambda,alpha,beta in CC$ 成立。
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@ -68,7 +68,7 @@
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$ beta = beta dot 1 = beta (alpha beta') = (beta alpha) beta' = 1 dot beta' = beta' $
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]
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#note[注:上面习题说明,$CC$ 构成一个域。]
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#note[上面习题说明,$CC$ 构成一个域。]
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#exercise_sol(type: "proof")[
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证明:
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@ -116,7 +116,7 @@
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#exercise_sol(type: "proof")[
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证明:$(x+y)+z=x+(y+z)$ 对所有 $x,y,z in FF^n$ 成立。
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#note[注:沿用原书记号1.6与记号1.10,即 $FF$ 表示 $RR$ 或 $CC$,$n$ 表示某一固定的正整数。下文不再赘述。]
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#note[沿用原书记号1.6与记号1.10,即 $FF$ 表示 $RR$ 或 $CC$,$n$ 表示某一固定的正整数。下文不再赘述。]
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][
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#tab 根据定义,令 $x = (x_1, x_2, dots, x_n)$,$y = (y_1, y_2, dots, y_n)$,$z = (z_1, z_2, dots, z_n)$,则有:
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$ (x+y)+z &= ((x_1+y_1, x_2+y_2, dots, x_n+y_n) + (z_1, z_2, dots, z_n)) \
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@ -125,7 +125,7 @@
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&= x+(y+z) $
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]
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#note[注:$FF^n$ 上向量的加法交换律由原书定理1.14给出。]
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#note[$FF^n$ 上向量的加法交换律由原书定理1.14给出。]
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#exercise_sol(type: "proof")[
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证明:$(a b)x = a(b x)$ 对所有 $x in FF^n$ 和 $a,b in FF$ 成立。
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@ -173,11 +173,11 @@
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原书定理1.14
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/ 可结合性: \
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习题11
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/ 加法恒等元: \
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/ 加法单位元: \
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原书记号1.15定义了 $0$,其性质容易验证
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/ 加法逆元: \
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原书定义1.17
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/ 乘法恒等元: \
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/ 乘法单位元: \
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习题13
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/ 分配性质: \
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习题14和习题15
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10
styles.typ
10
styles.typ
@ -8,7 +8,7 @@
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#let zhfont_fangsong = ("Zhuque Fangsong (technical preview)", "Noto Serif CJK SC")
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#let monofont = ("Fira Code")
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#let theme_color = color.blue
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#let theme_color = color.green
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#let tab = h(2em)
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#let halftab = h(1em)
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@ -108,7 +108,11 @@
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body
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}
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#let note(body) = {
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#let note(body, supplement: "注") = {
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if supplement != none {
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text(supplement, 9pt, font: zhfont_sans, weight: "medium", fill: theme_color.darken(40%))
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h(0.5em)
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}
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text(body, 9pt, font: zhfont_fangsong)
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}
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@ -214,7 +218,7 @@
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body
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}
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#let exercise_sol(e, s, type: "proof") = {
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#let exercise_sol(e, s, type: "proof", label: none) = {
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figure(e, kind: "exercise-problem", supplement: "习题")
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s
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}
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