mirror of
https://github.com/typst/typst
synced 2025-05-14 04:56:26 +08:00
227 lines
5.3 KiB
Typst
227 lines
5.3 KiB
Typst
// Test alignment of block equations.
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// Test show rules on equations.
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--- math-equation-numbering ---
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#set page(width: 150pt)
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#set math.equation(numbering: "(I)")
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We define $x$ in preparation of @fib:
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$ phi.alt := (1 + sqrt(5)) / 2 $ <ratio>
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With @ratio, we get
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$ F_n = round(1 / sqrt(5) phi.alt^n) $ <fib>
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--- math-equation-font ---
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// Test different font.
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#show math.equation: set text(font: "Fira Math")
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$ v := vec(1 + 2, 2 - 4, sqrt(3), arrow(x)) + 1 $
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--- math-equation-show-rule ---
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This is small: $sum_(i=0)^n$
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#show math.equation: math.display
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This is big: $sum_(i=0)^n$
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--- math-equation-align-unnumbered ---
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// Test unnumbered
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#let eq(alignment) = {
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show math.equation: set align(alignment)
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$ a + b = c $
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}
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#eq(center)
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#eq(left)
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#eq(right)
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#set text(dir: rtl)
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#eq(start)
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#eq(end)
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--- math-equation-align-numbered ---
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// Test numbered
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#let eq(alignment) = {
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show math.equation: set align(alignment)
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$ a + b = c $
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}
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#set math.equation(numbering: "(1)")
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#eq(center)
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#eq(left)
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#eq(right)
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#set text(dir: rtl)
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#eq(start)
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#eq(end)
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--- math-equation-number-align ---
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#set math.equation(numbering: "(1)")
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$ a + b = c $
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#show math.equation: set align(center)
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$ a + b = c $
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#show math.equation: set align(left)
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$ a + b = c $
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#show math.equation: set align(right)
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$ a + b = c $
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#set text(dir: rtl)
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#show math.equation: set align(start)
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$ a + b = c $
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#show math.equation: set align(end)
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$ a + b = c $
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--- math-equation-number-align-start ---
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#set math.equation(numbering: "(1)", number-align: start)
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$ a + b = c $
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#show math.equation: set align(center)
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$ a + b = c $
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#show math.equation: set align(left)
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$ a + b = c $
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#show math.equation: set align(right)
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$ a + b = c $
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#set text(dir: rtl)
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#show math.equation: set align(start)
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$ a + b = c $
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#show math.equation: set align(end)
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$ a + b = c $
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--- math-equation-number-align-end ---
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#set math.equation(numbering: "(1)", number-align: end)
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$ a + b = c $
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#show math.equation: set align(center)
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$ a + b = c $
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#show math.equation: set align(left)
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$ a + b = c $
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#show math.equation: set align(right)
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$ a + b = c $
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#set text(dir: rtl)
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#show math.equation: set align(start)
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$ a + b = c $
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#show math.equation: set align(end)
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$ a + b = c $
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--- math-equation-number-align-left ---
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#set math.equation(numbering: "(1)", number-align: left)
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$ a + b = c $
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#show math.equation: set align(center)
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$ a + b = c $
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#show math.equation: set align(left)
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$ a + b = c $
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#show math.equation: set align(right)
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$ a + b = c $
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#set text(dir: rtl)
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#show math.equation: set align(start)
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$ a + b = c $
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#show math.equation: set align(end)
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$ a + b = c $
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--- math-equation-number-align-right ---
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#set math.equation(numbering: "(1)", number-align: right)
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$ a + b = c $
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#show math.equation: set align(center)
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$ a + b = c $
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#show math.equation: set align(left)
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$ a + b = c $
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#show math.equation: set align(right)
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$ a + b = c $
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#set text(dir: rtl)
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#show math.equation: set align(start)
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$ a + b = c $
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#show math.equation: set align(end)
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$ a + b = c $
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--- math-equation-number-align-center ---
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// Error: 52-58 expected `start`, `left`, `right`, or `end`, found center
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#set math.equation(numbering: "(1)", number-align: center)
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--- math-equation-number-align-center-bottom ---
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// Error: 52-67 expected `start`, `left`, `right`, or `end`, found center
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#set math.equation(numbering: "(1)", number-align: center + bottom)
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--- math-equation-number-align-monoline ---
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#set math.equation(numbering: "(1)")
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$ p = sum_k k ln a $
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#set math.equation(numbering: "(1)", number-align: top)
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$ p = sum_k k ln a $
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#set math.equation(numbering: "(1)", number-align: bottom)
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$ p = sum_k k ln a $
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--- math-equation-number-align-multiline ---
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#set math.equation(numbering: "(1)")
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$ p &= ln a b \
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&= ln a + ln b $
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--- math-equation-number-align-multiline-top-start ---
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#set math.equation(numbering: "(1)", number-align: top+start)
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$ p &= ln a b \
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&= ln a + ln b $
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$ q &= sum_k k ln a \
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&= sum_k ln A $
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--- math-equation-number-align-multiline-bottom ---
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#show math.equation: set align(left)
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#set math.equation(numbering: "(1)", number-align: bottom)
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$ p &= ln a b \
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&= ln a + ln b $
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$ q &= sum_k ln A \
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&= sum_k k ln a $
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--- math-equation-number-align-multiline-expand ---
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// Tests that if the numbering's layout box vertically exceeds the box of
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// the equation frame's boundary, the latter's frame is resized correctly
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// to encompass the numbering. #box() below delineates the resized frame.
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//
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// A row with "-" only has a height that's smaller than the height of the
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// numbering's layout box. Note we use pattern "1" here, not "(1)", since
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// the parenthesis exceeds the numbering's layout box, due to the default
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// settings of top-edge and bottom-edge of the TextElem that laid it out.
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#set math.equation(numbering: "1", number-align: top)
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#box(
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$ - &- - \
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a &= b $,
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fill: silver)
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#set math.equation(numbering: "1", number-align: horizon)
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#box(
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$ - - - $,
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fill: silver)
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#set math.equation(numbering: "1", number-align: bottom)
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#box(
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$ a &= b \
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- &- - $,
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fill: silver)
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--- issue-numbering-hint ---
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// In this bug, the hint and error messages for an equation
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// being reference mentioned that it was a "heading" and was
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// lacking the proper path.
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#set page(height: 70pt)
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$
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Delta = b^2 - 4 a c
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$ <quadratic>
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// Error: 14-24 cannot reference equation without numbering
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// Hint: 14-24 you can enable equation numbering with `#set math.equation(numbering: "1.")`
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Looks at the @quadratic formula.
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