The Scientific Calculator Keyboard consists of three different keyboards. You can switch between the keyboards by selecting the one you want to use. [br][br]The first keyboard is the [img width=31,height=20]https://lh5.googleusercontent.com/hseg06SLfuanyvdFfRn0Q-I0P_FOmJCBItxpWClvZM5ppDyKAA_so2o89yI5hDCiOMNPLX6H1LrT2jwFFcgUczrRUxaT8toH9wCxj3Zl7xljRaivKVt5xvodoGOLsNoPVmp-shjv[/img] keyboard. There you can find keys for digits and basic arithmetic, trigonometric and logarithmic operators.

[table][tr][td][img width=29,height=31]https://lh6.googleusercontent.com/_x7fxBNjvB87juZpDBPsQ0z6zi_Dn8ze4RjN5akKMITbrswfNoP4GUwLuYzjAHcVRSCQ2YHZE9gDPk2njCUO6hsq7bUxoX42Ja4FSjwspAh-ccksbRxKWNdt81q-6dtdxO0qujZ_[/img][/td][td]Square a number[/td][/tr][tr][td][img width=28,height=30]https://lh6.googleusercontent.com/YzRoZG4XoGZLRp9w-Nl4SkJ7IbYYWIK-9pQqItsxuqYL1jS4gO-oC84V7ZfYhXvNCEUmrUxjlMJOh2B4Hwmy2MMJ2tsRy0PtaKvhuXxo6IvHAEgPlreyBKz4UY5fHm-R9t6zcuhL[/img][/td][td]Raise a number to a power[/td][/tr][tr][td][img width=28,height=30]https://lh3.googleusercontent.com/hRvbUAhA54XQcYR_6erhnWEN8P4nDDidgA5wk3_MTT9jPZ-VoN8vh-Rf0U1-8ao1EBKlTlT2xIAM8NAFwx5kVYB2bAlkysUmAzFqZHnlv7B5DdyT44iCpHfm3X9NLZRPnuFwJqis[/img] [/td][td]Square root of a number[/td][/tr][tr][td][img width=26,height=29]https://lh5.googleusercontent.com/Mi738_xBEVsAdrpM3s9MHUkn8KCGuQFu0H4aQhjXBAglZqqheS0jgSuwTHWTqC8Tsbj_ThACtZIsZR-hpHSpI6xZS0SVceuyifYckZaXb3PLJLKq-2hKbu0mB3ElDa2LtEaHp5Kl[/img] [/td][td]Put in a fraction[/td][/tr][tr][td][img width=83,height=29]https://lh3.googleusercontent.com/1TXyHWkQ3sjvqQ4VLo3FDgaY_sJaKxNG1y608HvrzJCMJS8zaSlGNdoyzW2RT6v9vw82ByZezefqrlHLYXtdwHWwrY9jn6cJnYDafuHM7Aw5vWtxISFHqoVzJPIbCdeoVoX-qZtG[/img][/td][td]Trigonometric functions: sine, cosine and tangent[/td][/tr][tr][td][img width=23,height=25]https://lh6.googleusercontent.com/1GdnRF4mXbh6Unlvk4XhlMDZZsQW7Oz3KD37En7TeM9vm4SkGsc82vo4PtH6aMy7-njC_Ziz9y2CfZ9qTpP6yC7MajgvnoTbocltqdBPNkYaMSQWYZtXPopqUfCnitrTxMZM-czo[/img] [/td][td]Pi[/td][/tr][tr][td][img width=84,height=30]https://lh3.googleusercontent.com/EH79KHx2_fAS6ptuyYHb_og1cng2jh_IMaCSuiZRdoByun41ikCWupxJvNQYyF5dbRoe5p4zvnlIxNMUk5WjLOjRfqS5saLphvq-esi1Os7glbB8o5CmFOGw6Y9nD7Tg937KUn6N[/img][/td][td]Logarithms to the base of [i]e[/i], 10 or any other number[/td][/tr][tr][td][img width=31,height=34]https://lh3.googleusercontent.com/l6DaKZTA-nIy5xlbNhP1DtkJWV1c7NxlIy8KXuh5kMCJ754yz1PiKFoc63kde4B35U8QIPQYuIIfCRfzZynH3i0JraWzY9RAWUkNPl1x-hcxAgwU1Fybb-50ACqd7Jxe1xZObj9B[/img] [/td][td]Reciprocal[/td][/tr][tr][td][img width=26,height=28]https://lh4.googleusercontent.com/XHWJg0t8Q59A3DT_q9OB0OrM41TesPXfXhacPM5hep8kccfrlmDVIw1cav1HqBJFRU6VMf_GOwJKlNZT42NhD52gYwZ-4gwaJyDyyOIPNgpZzHb4il7DU5xYzl0Pj1yxhqNR6q61[/img] [/td][td]Put in the solution of the calculation above[/td][/tr][tr][td][img width=25,height=26]https://lh5.googleusercontent.com/uk_lZlqmZwtXD23bqXiJuUAqHL9AiaPkx-dFfDH8KppBbu7laYOEu3w6poNmgsyDgGSo8vfAtdTL7rd6wvWzchP_lBfUzipQj_nK3FnMpHnWvrD3jsnnAti1LbpW7IiT5_oUDABH[/img] [/td][td]Comma[/td][/tr][/table][table][tr][td][img width=47,height=26]https://lh5.googleusercontent.com/OmgRud6TPMzlLzMVB0zbCpeHyIfy1vS9jBQ1s6Eb41iMTw4STIIHAY7SF7HwjMKVKHcBQtSkjBOvamkkNxc038aHsBowpf-gYq-jdrpIT3kWbfPNXKt5jlo9PyNUqXKQN6qZAjqt[/img][/td][td] Brackets[/td][/tr][tr][td][br][img width=29,height=31]https://lh4.googleusercontent.com/aH6_oygr_0gw5GvaTrNhuyYU9mdUyxaCqTlqkkQKHy2RmQOCG7bs0waR9E15wV1R0x6joXIQVHgiiVranjjxdrVmyH0cXq3gyEgJqc6OjCNuKSWh4DSsPPd-9G9kOUqtB3xZFTCs[/img][img width=80,height=30]https://lh5.googleusercontent.com/6iugF8AUh8-pY8gz2rpGE1wtKN-m2T5Lwmk7DD6Iy-LQwL0aGHbWHNc-CFDpBXm907glZjanVFLRqfMHRcI3OwDK8TKXSiqpZZ958Hv6QF4wUn5-0NEv-QTAbbvpW_9b-GSpaptp[/img][br][img width=83,height=29]https://lh5.googleusercontent.com/8OJqPOqeEh8YyOnSiO-j_zG8qrqa-5nZ4VLD675s614xthxN4Gs_HD_nz3-jWE20TO87DfyTXbZN2V5tHUTTC-9X5XXBOpfls2RLigCdY8zTo_A4LZVmCBJ1gzwPEikZRpPDVl_R[/img][br][img width=79,height=30]https://lh6.googleusercontent.com/qPvd3cd5GUJwejQa0wKzoAk75QmU_rYRVOFAPv6J6MYIKOiN1gENneAla6lXiUfd7Bs1PpuOaJ9d1KfGXJqsaI1Ze9DDKjEbM6Lbstx9hgvIxP8KGB7kTyilc9agjthty3nflodj[/img] [/td][td] Digits[/td][/tr][tr][td][img width=51,height=29]https://lh5.googleusercontent.com/DJ_L_IHEKSlEy1tp6gjvTmefH_GywY_K_smBmQi4_sSaz2AzkhSaVvocpUGCoUM_qbLLEHJK-m5MxDO7kBPEt5kqunesNvoMzndigAEjIH7H87jJtAwwc1-Z6bY4hbg-qkmRLTu7[/img][br][img width=50,height=30]https://lh4.googleusercontent.com/q7npWmWFUeUJrW7yzh_PRgtAEKHsvEEfhrBQV7rR28dlhG8cATchLcWvKyHFVkbOgGfEt5AMN0VgJpWBqKa4GtqGRCdDLyt7dq4bg8wTAAJKyyR5B_JNZGGMy1z47OD1dt4qs8sL[/img][/td][td] Arithmetic operations: addition, subtraction, multiplication and division[/td][/tr][tr][td][img width=26,height=29]https://lh5.googleusercontent.com/ogpzq7QRxiPWH8vnQAkzVtsDL9Epp2xTMkSBiUtR2LBelimpi4i06NC3in6GsRtffhEVFbOvb40iYYY7mCJhzJLCVq9H0PiwheWPLVdEsLcNaLozx-ogZdoXjS9NwHmrkjWyYK5w[/img][/td][td] Percent[/td][/tr][tr][td][img width=28,height=30]https://lh6.googleusercontent.com/JMsbHYLaGGXTriKtjdSxOafISLgVJMuMIGj0VZZdGBDLenJHIRHYHDBnA6CUOigA5W-cKDQpjQGWZoCLDInnsl8trXWfDqZftGu3bE0kkl9SFY2uqeZYHMLerhw9Ung39yjc7ETa[/img] [/td][td] Decimal point[/td][/tr][tr][td][img width=27,height=31]https://lh3.googleusercontent.com/rXcMX6B1RXfASjQypRZDhk_cgN-e8a4Xb6b1n6iVbG9mnOHU4e9752Z75565b8zM70HFkWYDx_0WuXj_-Nvoy2uhlSpUrCkUWmoL9wJI2-vw3Lz0M5xKIt0UxrBqB_PDXNZWqcTb[/img] [/td][td] Delete the entry on the left[/td][/tr][tr][td][img width=32,height=26]https://lh4.googleusercontent.com/6kRStTVAryBeRmRAWzoqoEBB6KN5WduJ4KEj7mQsk3e9BcMe94l2j03YJNXWfrVZ7HKaBUAs9GfO1G854CbMIYshcMkeaketLUMLUKNG_4z3yBfOJ7GO0ZR_pKtGeIRiSyma3zWc[/img][img width=32,height=26]https://lh3.googleusercontent.com/V8YMih0SXbSNga3jWhpJeOpfyfAPt4w-83ujI1DpcW3jWUT5wVIgJZsO0WYgWSLLdBxq6eA4lF8kCWoRP1_GK-VV5MkOrHn2B1NiwZ9cXcsOg0ubzEG4II-rLVVaU1ymAZ9qyW3v[/img] [/td][td] Move left or right inside the Input Bar[/td][/tr][tr][td][img width=35,height=27]https://lh3.googleusercontent.com/wkSBqcFTiTTtdL-GFlM3SLzCgk_u3lAwD6gf63lKqs9sK-CMjZrYl_mNQ6NBoonheHFW_uAmbbULNUicQ_9kqzmKI9pHiKvDhYJ65EMdJc72bFvdsEURgutX7tFOXvuJh4Wacs3y[/img] [/td][td] Enter your calculation and get a result[/td][/tr][/table]

Type in the following calculations and check the results with the image below[br][list=1][*]Calculate [math]\left(3\times4.5+3.7\right)\div2[/math][br][/*][*]Calculate [math]\sqrt{144}[/math][br][/*][*]Calculate [math]log_2\left(32\right)[/math][br][/*][*]Calculate [math]sin\left(\frac{\pi}{2}\right)[/math][/*][*]Subtract [math]\frac{3}{7}[/math] from [math]\frac{9}{13}[/math][/*][/list][b]Note:[/b] By selecting [img width=27,height=28]https://lh5.googleusercontent.com/h6s9K11aAIEPnRimfwGYsdWYRHo3twju60JFhG6ePhsFYVnqFauXbHTXJkt2I4aQDRkTWY-FJke44R2fJZKY2Y7DmKGzTKGlQeOyG72wh_dzwnsW0XCyDie8AkCTPZt4ZmLqlSRN[/img] when computing with fractions, you can see the result as rounded decimal. Selecting [img width=27,height=26]https://lh5.googleusercontent.com/KaHNF3Qv1SocF4hH1jl3i03cNsM4pyJxAbHoiVj61FXyH0To7aHisW8vNynVQvn9Pt3dSAVOQcOArr2PhzW1hWG7Tyq3aPON61yy5noamFT29Mpqdrn-BN9GF0o2ZkldLwtxm2B8[/img] the solution is shown as fraction again.