็™ป้Œฒใ—ใฆๆ‹›ๅพ…ใƒชใƒณใ‚ฏใ‚’ๅ…ฑๆœ‰ใ™ใ‚‹ใจใ€ๅ‹•็”ปๅ†็”Ÿๅ ฑ้…ฌใจ็ดนไป‹ๅ ฑ้…ฌใ‚’็ฒๅพ—ใงใใพใ™ใ€‚

Math Files
@Math_files
Life is nonlinear. So handle it using Math.
ๅ‚ๅŠ  June 2020
16 ใƒ•ใ‚ฉใƒญใƒผไธญ    158.3K ใƒ•ใ‚กใƒณ
The symbols ๐‘‘๐‘ฅ, ๐‘‘๐‘ฆ, and ๐‘‘๐‘ฅ/๐‘‘๐‘ฆ or ๐‘‘๐‘ฆ/๐‘‘๐‘ฅ were introduced by German mathematician Gottfried Wilhelm Leibniz (1646 โ€“ 1716) in a manuscript dated November 11, 1675 (Cajori Vol. 2, p. 204).
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