--- title: "jCalc – 科学計算機 - Reviews, Revenue and Downloads in Japan | Apple App Store" description: "シンプル。パワフル。使いやすい。 jCalcは、学生、教師、専門家向けに設計された科学計算機です。分数、小数、または高度な方程式を解く場合でも、jCalcは簡単で直感的に使えます。 主な機能 分数と小数が簡単に： • [1] [.] [2] = 1.2 • [1] [子/母] [2] = 1/2 • [1] [子/母] [2] [数子/母] [3] = 1_2/3 柔軟な回答形式： • 小数点" --- # jCalc – 科学計算機 — Japan > 履歴,分数,関数 ![JCalc App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/1d/59/63/1d5963e3-e572-5ad8-2c88-520c88fc4520/AppIcon-0-0-1x_U007emarketing-0-7-0-85-220.png/434x0w.png) **Developer:** [Jon Ericksen](https://apptail.io/developer/jon-ericksen-Nqed) **Category:** Utilities **Rating:** 3.9/5 (61 ratings) **Price:** Free **Bundle ID:** com.JonEricksen.Calculator-jCalc-Free **Store:** Apple App Store **Country:** Japan **Version:** 2.3 (released 2025-01-13) **Original Release:** 2014-06-25 **Languages:** English, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek (modern), Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Chinese, Slovak, Spanish, Swedish, Thai, Turkish, Ukrainian, Vietnamese **App Store Link:** [Download on Apple App Store](https://apps.apple.com/jp/app/app/id885770968) **AppTail Page:** [https://apptail.io/app/jcalc-scientific-calculator-dyLb/japan](https://apptail.io/app/jcalc-scientific-calculator-dyLb/japan) ## JCalc Description シンプル。パワフル。使いやすい。 jCalcは、学生、教師、専門家向けに設計された科学計算機です。分数、小数、または高度な方程式を解く場合でも、jCalcは簡単で直感的に使えます。 主な機能 分数と小数が簡単に： • [1] [.] [2] = 1.2 • [1] [子/母] [2] = 1/2 • [1] [子/母] [2] [数子/母] [3] = 1_2/3 柔軟な回答形式： • 小数点以下16桁まで表示 • 無理数、有理数、小数、指数形式での結果表示 • 三角関数の結果を度数法、弧度法、またはグラード法で切り替え スマートな変換： • [Ab/c] ⟺ [a/b] ⟺ [a.b] ⟺ [a.b×10^c] 便利なボタン機能： • [削除]：最後の入力を削除 • [C]：現在の式をクリア • [AC]：[C]を押し続けてすべてをクリア • [関数]：科学計算モードに切り替え • [2番目]：追加機能にアクセス 高度な数学機能： • メモリ機能： [回答]で以前の回答を呼び出し • 自動括弧： 手動で入力する必要なし • パーセントボタン： パーセンテージ計算を簡単に • 指数表記： 大きな数を簡単に入力 • π ボタン： π へのクイックアクセス 包括的な数学ツール： • ルート、累乗、指数 • 対数（カスタム基数を含む） • 三角関数と双曲線関数 [双曲] • 順列、組合せ、階乗 [確率] シンプルでありながら強力な計算機を体験してください。 ハッピーコンピューティング！ ## JCalc Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/65/ee/9a/65ee9a4b-146f-b62f-eb68-99b367ede1ef/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M4_U0029_-_2025-01-11_at_21.41.58.png/2064x2752.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/20/f3/5f/20f35ff5-c2fc-8f2a-b86f-df3cd5b35db9/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M4_U0029_-_2025-01-11_at_22.21.55.png/2064x2752.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/c1/eb/46/c1eb4667-5193-5fd1-f274-6bbd9ab7732f/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M4_U0029_-_2025-01-11_at_22.52.53.png/2064x2752.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/13/a9/66/13a966ad-da7b-a4e4-8586-678f09292007/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M4_U0029_-_2025-01-11_at_23.36.55.png/2064x2752.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/83/b3/32/83b3329e-0d98-c045-69e3-5a036a6c94d9/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M4_U0029_-_2025-01-12_at_00.01.02.png/2064x2752.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/4f/ba/ff/4fbaff75-008e-51a1-f564-07ef64ec2356/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M4_U0029_-_2025-01-12_at_00.19.36.png/2064x2752.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/a2/43/00/a24300b1-3263-cd80-de6c-f030b3d3862c/Simulator_Screenshot_-_iPad_Pro_13-inch__U0028M4_U0029_-_2025-01-12_at_00.44.03.png/2064x2752.png) ## JCalc Rating Breakdown in Japan - 5 stars: 31 (51%) - 4 stars: 12 (20%) - 3 stars: 8 (13%) - 2 stars: 3 (5%) - 1 stars: 7 (11%) ## JCalc Reviews in Japan ### ***** "良きかな" 兄弟姉妹相続等の法定相続分の検算で使用。計算式が明示されるのでわかりやすいですね。 -- Lawyer Fuji, 2025-02-16 ### ***** "良きかな" 兄弟姉妹相続等の法定相続分の検算で使用。計算式が明示されるのでわかりやすいですね。 -- Lawyer Fuji, 2024-12-06 ### ***-- "？" どこで履歴見れるのか分からない -- おくちん森ケ, 2024-09-03 [View all JCalc reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Apps Similar to JCalc - [Calculator +](https://apptail.io/app/calculator-pv/japan) - 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